This photo shows amphipods under the microscope. Credit: Patek Lab
(Subscribe to Science For All, our weekly newsletter, where we aim to take the jargon out of science and put the fun in. Click here.)
The fastest snapping claws on Earth belong to male amphipods (Dulichiella cf. appendiculata) which are microscopic, shrimp-like creatures. Scientists noticed that they can repeatedly close their claws in less than 0.01% of a second. The claws make up a third of the male's body weight and researchers say they are still trying to figure out why these creatures invest so much into this action and whether it plays into male-female interaction or territorial disputes.
The level of dangerous nitrogen oxides has reduced across the north equatorial part of Africa. But how was this possible when the region has seen an increase in human population and fossil fuel use? Researchers found that the reason was a decline in the longtime practice of setting dry-season fires to manage land. They noted that row-crop agriculture and shifting weather patterns also played a role.
About 370 million years ago, a certain fish species walked out of water, converted its fins to limbs and modified its lungs for air-breathing. A new paper has now shown that fish ancestors that lived millions of years before fish crawled ashore carried the genetic codes needed for limbs and air-breathing. "The water-to-land transition is a major milestone in our evolutionary history. The key to understanding how this transition happened is to reveal when and how the lungs and limbs evolved. We are now able to demonstrate that biological functions occurred much earlier before the first animals came ashore," stated lead author Guojie Zhang in a release.
In 2015, a mass coral bleaching event occurred near the Kaneohe Bay in Hawaii. Four years later, the corals were studied, and new chemical signatures or biomarkers that helped some corals be more resistant to the bleaching, have been discovered. The researchers write that this finding can help conservationists restore and protect the global reef ecosystem.
What walking or running style did dinosaurs have? Is it similar to the visuals shown in Jurassic Park? By studying the joints and limb movements of modern birds and alligators, scientists have developed a new 3D imaging technology called X-ray Reconstruction of Moving Morphology — or XROMM that can help reconstruct the locomotion of extinct animals. The team writes that this technology “will help to unravel the history of vertebrate locomotor evolution.”
You have reached your limit for free articles this month.
Already have an account ? Sign in
Start your 14 days free trial. Sign Up
Find mobile-friendly version of articles from the day's newspaper in one easy-to-read list.
Enjoy reading as many articles as you wish without any limitations.
A select list of articles that match your interests and tastes.
Move smoothly between articles as our pages load instantly.
A one-stop-shop for seeing the latest updates, and managing your preferences.
We brief you on the latest and most important developments, three times a day.
*Our Digital Subscription plans do not currently include the e-paper, crossword and print.
We have been keeping you up-to-date with information on the developments in India and the world that have a bearing on our health and wellbeing, our lives and livelihoods, during these difficult times. To enable wide dissemination of news that is in public interest, we have increased the number of articles that can be read free, and extended free trial periods. However, we have a request for those who can afford to subscribe: please do. As we fight disinformation and misinformation, and keep apace with the happenings, we need to commit greater resources to news gathering operations. We promise to deliver quality journalism that stays away from vested interest and political propaganda.
Your support for our journalism is invaluable. It’s a support for truth and fairness in journalism. It has helped us keep apace with events and happenings.
The Hindu has always stood for journalism that is in the public interest. At this difficult time, it becomes even more important that we have access to information that has a bearing on our health and well-being, our lives, and livelihoods. As a subscriber, you are not only a beneficiary of our work but also its enabler.
We also reiterate here the promise that our team of reporters, copy editors, fact-checkers, designers, and photographers will deliver quality journalism that stays away from vested interest and political propaganda.
Please enter a valid email address.
Subscribe to The Hindu now and get unlimited access.
You can support quality journalism by turning off ad blocker or purchase a subscription for unlimited access to The Hindu.