A group of Hungarian scientists say they unintentionally created a hybrid of two endangered species – Russian sturgeons and American paddlefish – that last shared a common ancestor 184 million years ago.
The hybrid has been named "sturddlefish" and the study was published in the journal Genes in May, reports Live Science.
Currently, there are about 100 of the hybrids in captivity.
Attila Mozsár, a senior research fellow at the Research Institute for Fisheries and Aquaculture in Hungary, told The New York Times that they "never wanted to play around with hybridisation” and that it was “absolutely unintentional".
Russian sturgeons or acipenser gueldenstaedtii, are critically endangered and are the source of much of the world's caviar. They can grow to more than 7 feet in length and live on a diet of molluscs and crustaceans.
American paddlefish (Polyodon spathula) filter-feed off of zooplankton in the Mississippi River drainage basin. They grow up to 8.5 feet long.
Both these species have a slow rate of growth and development which puts them at risk of overfishing.
Much to the surprise of Mozsár and his colleagues, they were able to breed.
The researchers were trying to breed Russian sturgeon in captivity through a process called gynogenesis, a type of asexual reproduction.
In gynogenesis, a sperm triggers an egg's development but fails to fuse to the egg's nucleus. That means its DNA is not part of the resulting offspring, which develops solely from maternal DNA.
The researchers were using American paddlefish sperm for the process, but something unexpected happened. The sperm and egg fused, resulting in offspring with both sturgeon and paddlefish genes.
The resulting sturddlefish hatched by the hundreds, and about 100 survive now, according to the Times.
Some are just about 50-50 mixtures of sturgeon and paddlefish genes, and some are far more sturgeon-like. All are carnivores, like the sturgeon, and share the sturgeon's blunter nose, compared with the paddlefish's pointy snout, the report said.
But the fact that fish separated by 184 million years of evolution could cross-breed indicates that they're not so different after all.
"These living fossil fishes have extremely slow evolutionary rates, so what might seem like a long time to us isn't quite as long of a time to them," Solomon David, an aquatic ecologist at Nicholls State University in Louisiana, told the Times.
Smartphone is no more a luxury; rather it has become a part of our daily life. Nowadays, you can find Smartphone devices built by diverse local and international brands. Their lucrative advertisements often make people confused. Many buyers cannot understand what to look for in a Smartphone, which ultimately wastes their money. Read this article to get some tips to buy the best Smartphone in 2020.
What kind of display you are looking for, HD or FHD? The term HD refers to pixel measurement of 1280 x 720 pixels. On the other hand, the Full HD or FHD features display measuring 1920 x 1080 pixels.
However, the pixel density of any Smartphone depends on the size of its screen. For instance, if your Smartphone has a 6-inch or bigger screen, you can enjoy the splendor of an FHD display. People who use their phones for playing high-definition games, reading eBooks, or watching dramas, can go for the FHD display. Among the latest mid-range budget smartphones, Xiaomi's Redmi 9 is offering an FHD display.
The IPS display is the modernized version of the ancient TFT LCD screen. IPS display drains battery power, as they need stronger backlights. Furthermore, IPS LCDs can make the phones bulky. If you emphasize daylight readability, bright white screen, sharp texts along with vivid images, then you can buy Smartphone bearing IPS LCD display.
On the other hand, the AMOLED display is an advanced form of previous OLED technology. Though the AMOLED screen is less visible in daylight and cannot make the images excessively sharp, the modern panels offer better color-contrast and superior viewing angles. If you prefer longer battery life, lively colors, and deep blacks, there is no alternative to AMOLED panel! However, an AMOLED display may cost you some extra money. The Samsung Galaxy S20 Series offer AMOLED screen.
Measured in Hertz (Hz), the refresh rate of a screen features how many times the content can refresh per second. A 60Hz display is able to refresh the screen about 60 times for each second, while a 90Hz screen can refresh 90 times per second. If the screen features a 120Hz refresh rate, the content gets 120 times to refresh per second. Therefore, a 120Hz display can refresh the screen two times faster than a 60Hz panel. To get better user-experience, try to buy smartphones with a higher refresh rate (90Hz or 120Hz).
It would really hurt if your adorable Smartphone’s screen gets scratched or broken. To protect a phone-screen from getting damaged, the Corning Company produces ‘Gorilla Glass’ featuring a scratch-resistant screen with greater durability.
Nowadays, the reputed brands are offering different versions of Corning Gorilla Glass protection in their latest Smartphone models. Gorilla Glass 5 offers the toughest protection against scratches or damages than its ancestors. Xiaomi's Note 9 Pro is protected by Gorilla Glass 5.
The durability of a Smartphone mostly depends on its build quality. The metal built phones feature the longest durability. However, you can hardly find one of those today. The glass built Smartphone devices are great offering both solid construction and a great aesthetic. Polycarbonate construction is good if your budget is low to medium. However, try to avoid phones built with plastic material.
There are some other features to consider. Before buying, check out whether the chosen Smartphone is Flash-proof. The inclusion of a dedicated MicroSD card slot is another necessary aspect you need to verify. Furthermore, confirm the availability of 3.5mm audio jack, USB-type C port, Flashlight, Fingerprint sensor, etc.
Today, the advanced phones come with 128GB memory; while the most mid-range Smartphone models are offering 64GB internal memory. It would be unfortunate if you pick any Smartphone which features lower memory like 32GB.
Moreover, make sure the phone has a good Data Transfer speed. The eMMC technology can send data in one direction (either read or write) at a time, with the utmost capacity of 2Gbps only; whereas, the UFS 2.1 can deliver 5.9Gbps speed at the peak in one lane. So, try to find a Smartphone equipped with UFS 2.1 or 3.1 technologies instead of eMMC. You can find UFS 2.1 in Redmi Note 8 Pro Smartphone.
The RAM capacity controls how much speed you can get from the Smartphone. The higher the RAM power the greater the performance. To get swift performance while playing games, try to get 4GB RAM at least. In addition to this, the LPDDR4X RAM should be always preferred to get superior performance.
If you are planning to buy a Smartphone to play HD Games, do not forget checking out the Processor. For gaming purposes, the Snapdragon processors mostly perform great. Conversely, choosing a gaming Smartphone with Mediatek processor, you may experience diverse problems, like GCAM incompatibility, heating, frame drops, etc.
Additionally, check the CPU architecture and speeds of the cores. While you choose an octa-core processor, navigate to their clock speeds. How many cores are running at what speed? And, considering the budget you can opt for the best version of the chipset.
If you love taking pictures and shooting video, then look into the camera configuration of your Smartphone. The more powerful the lens quality is the high-resolution picture it can deliver. Standard camera series are expected to deliver images with good color-contrast, detailing, and correct edges.
For taking wide-angle captures at dynamic range, your phone must have an ultra-wide Sensor. For shooting small objects, get a phone with a powerful macro lens. Check out the picture quality in both daylight, and low light situations.
People, who love taking selfies, can opt for Smartphone models that offer superb front cameras. Another thing to remember is that the camera sensors built by Sonny can deliver better performance than Samsung. For professional photography or vlogging look for advanced level features like night mode, stabilization mode, beauty mode, etc.
How long your Smartphone can stay alive depends on its battery power. The contemporary phones are offering good battery life. It would be wise if you can get a Smartphone supported by 5000mAh or higher battery. Samsung's mid-range series Smartphone, Galaxy M31 has brought 6000mAh battery. On the lower end, try not to buy any phone bearing less than a 4500mAh battery.
What is more? Fast charging can reduce the recharging period. Choose a Smartphone supporting 18W charger at a minimum. For instance, Realme 6i has an 18W charger. On the high end, when your phone is blessed with a 22W or 30W charger, the charging process would be faster! Among the contemporary smartphones, Redmi Note 9 Pro comes with a 30W charger.
Do not fall for the sweet words of the seller. Besides considering the above-mentioned features, verify the post-sale service quality of your Smartphone. Otherwise, you may need to spend more money on repairing your Smartphone in later years.
The hackers targeted the accounts of 130 people, some of its most high-profile users and were able to reset the passwords of 45 of those accounts, said Twitter.
“We’re embarrassed, we’re disappointed, and more than anything, we’re sorry. We know that we must work to regain your trust, and we will support all efforts to bring the perpetrators to justice,” Twitter said in the blog post.
The San Francisco-based company said in a blog post Saturday that for up to eight of these accounts the attackers also downloaded the account’s information through the “Your Twitter Data” tool. None of the eight were verified accounts, Twitter said, adding that it is contacting the owners of the affected accounts.
The July 17 attack broke into the Twitter accounts of world leaders, celebrities and tech moguls in one of the most high-profile security breaches in recent years.
The attackers sent out tweets from the accounts of the public figures, offering to send $2,000 for every $1,000 sent to an anonymous Bitcoin address.
It highlighted a major flaw with the service millions of people have come to rely on as an essential communications tool.
Allison Nixon, chief research officer at cybersecurity firm 221B said in an email Sunday that the people behind the attack appear to have come from the “OG” community, a group interested in original, short Twitter handles such as @a, @b or @c, for instance.
"Based upon what we have seen,the motivation for the most recent Twitter attack is similar to previous incidents we have observed in the OG community — a combination of financial incentive, technical bragging rights, challenge, and disruption,” Nixon wrote. “The OG community is not known to be tied to any nation state. Rather they are a disorganized crime community with a basic skillset and are a loosely organized group of serial fraudsters.”
While this attack did not appear go further than the Bitcoin ruse — at least for now — it raises questions about Twitter’s ability to secure its service against election interference and misinformation ahead of the U.S. presidential election.
To address the growing need for home office and remote working solutions, Grameenphone has introduced a new LTE pocket router (MF927U) that enables 4G LTE mobile data access for homes, retail stores, SMEs, and offices across Bangladesh.
Mohammad Sajjad Hasib, CMO Grameenphone, said, "We’re happy to introduce this modern device that will add significant value to our customers' digital needs.”
Multiple users will get access simultaneously and it offers the widest 4G LTE coverage at the remotest corners, he said. “I truly believe this device will enable us to move our digital Bangladesh ambitions."
With a sleek design, it delivers high-speed mobile internet access for up to 10 users simultaneously.
The portable router, WiFi is 802.11 b/g/n 2X2, has a streamlined white chassis and 4 LED indicator lights, the MF927U is a stylish addition to all desks and settings.
MF927U technology enables 300Mbps data and offers USB ports to help users share data conveniently.
The portable router is an easy-to-carry device with a size of 78*78*14.5mm only. The 2,000mAh battery can last up to 8 hours, allowing users to enjoy high-speed network services at any time and place.
The price of the router is Tk 2,999 and will come with the warranty of two years.
Xiaomi is one of the leading companies who produce quality smartphones. On July 10, 2020, Xiaomi has launched their latest smartphone Redmi 9 in Bangladesh with a surprisingly affordable price tag! Stay with us to know the features, specs, limitations, and price of Redmi 9 in Bangladesh.
Though Redmi 9 features polycarbonate construction, the fascinating anti-finger magnetic design keeps it smudge-free. On the rear-side, this Smartphone owns a matte texture displaying circular design which emulates Poco X2. If you dislike glossy smartphones, pick Redmi 9!
The power button and volume rocker sit on the right; while on the left side, it carries the SIM card tray with dual nano-SIM card slots with a dedicated slot for MicroSD card. You will find a noise canceller with an IR blaster on its upper side. Furthermore, the bottom edge is packed with 3.5mm audio jack, USB Type-C port, primary microphone, and a bottom-firing speaker. The sound quality of loudspeaker and earphone is quite satisfactory.
Redmi 9 has a fast face unlock sensor on the front side. The efficient fingerprint scanner has been blended with the vertical camera bump on its rear side. You will also find a flashlight below the rear camera panel. The flash proof nano-coating has made this Smartphone suitable for rough use.
Redmi 9 is blessed with a 6.53-inch IPS LCD panel display, which is a major improvement from its ancestor Redmi 8. Owning a full HD Plus display, Redmi 9 has entered to a head to head competition with the Realme 6i. By virtue of Superior display, Redmi 9 has out won many pricier competitors.
Though budget-level smartphones usually come with a compromised display due to cost-cutting issues, the bright display of Redmi 9 has overturned this trend. Xiaomi deserves to applaud for providing 1080x2340 Pixels resolution with 19:5:9 ratios, 395PPI density, and 400 nit brightness. You will get great brightness, visibility, and color contrast in daylight. Furthermore, its ‘Eye Protection’ feature is a bonus for the young generation who spent long hours in gaming or web browsing.
Compared with Redmi 8, the latest 9 version bears thinner bezels with ~83.2% screen-to-body ratios. But on the bottom side, the bezels are a bit thicker. Its water drop notch won’t break the continuity of the display. The ‘Redmi’ logo has been sent to its rear side making the display cleaner than its ancestor Redmi 8.
Like the competitor Realme 6i, Xiaomi’s Redmi 9 is protected by Corning Gorilla Glass 3. But it is a downgrade from the ancestor Redmi 8’s Corning Gorilla Glass 5 protection.
Redmi 9 offers four rear cameras. The 13MP primary rear camera (f/2.2 aperture, 28mm wide) can take decent photos with nice detailing, and color contrast in broad daylight. However, the dynamic range may not impress you. The secondary 8MP (@f/2.2 aperture) wide-angle lens is capable of shooting at a 118-degree field of view preserving sharpness and color quality in ample light conditions.
Its 2MP Depth sensor can take nice portraits with correct edges with a bit of imposed smoothness. 5MP Macro lens is a great addition, which you can hardly find in the similarly priced competitors. In low light, the pictures may lose some detailing, but you can take good photos using night mode, super slow motion, time-lapse and many more exciting features. The overall picture quality is pretty nice considering the price range.
In Redmi 9, Xiaomi has provided the 8 MP, f/2.0 front camera, which we have also seen in the ancestor 8 version. Though the front shooter takes smooth portraits, the sharpness is not compromised. Apply the night mode to capture better selfies in low light situations.
Both the primary and the front camera can shoot video at 1080p@30fps. However, you have to sacrifice 4K video recording. If you are looking for a Smartphone for professional vlogging or photography, you can check out other smartphones.
In Redmi 9, Xiaomi has provided Mediatek Helio G80 processor with CPU architecture of Cortex A-75 and A-55. This configuration may dishearten the gamers expecting a Snapdragon processor. This Smartphone is provided with GPU Mali-G52 MC2 which would facilitate running PUBG Mobile, Free Fire, and other games in high settings.
To cope up with the high-resolution display, Redmi 9’s processor functions thoroughly, this may cause some frame drops in action moments. Its surface areas may get heated up when you do gaming for long hours. For regular use, this Smartphone works great.
Redmi 9 runs on Android 10 OS supported by MIUI 11 interface. Very soon, it may be upgraded to the latest MIUI 12 version. The advertisements have been reduced which is good news for the Mi fans.
Turning to the sensors, Redmi 9 is programmed with advanced features like Bluetooth 5, distance sensor, e-compass, accelerometer, vibration motor, etc. However, the lack of Gyroscope is bad news for gamers. This trendy Smartphone features security level-1 certification which is a windfall for those who use diverse online streaming services.
Redmi 9 is currently available at 4GB by 64GB configuration. This Smartphone is equipped with an eMMC 5.1 storage type, which may somewhat delay the data transfer process. The inclusion of LPDDR4X RAM has made this Smartphone truly smart. 64GB internal storage is great for regular usage. However, if you need more memory, insert a MicroSD card.
Redmi 9 is equipped with a 5020mAh battery which can serve up to 2 days if used moderately. Though this Smartphone is compatible with 18W fast charging, the box includes a 10-watt charger. It may take 2.5 to 3 hours to fully recharge this device. If provided with an 18W charge, Redmi 9 could have been a perfect package.
Currently, the official Redmi 9 (4GB+64GB) Smartphone is available at BDT 14,999 in Bangladesh. Considering its magnificent display, good camera series, powerful battery, and reliable performance, we can say that no other brand is offering such a fascinating combination under this price range.