Tiktaalik, a fish-like creature that lived 375 million years ago, is a prime example of a transitional species — something between the ancient fish that swam in the seas and the ancient primitive amphibians that moved about on land. Discovered in Northern Canada in 2004, it represents the earliest example of front legs that we've found, so far, in the fossil record. Now, thanks to the discovery of some newer specimens that include the Tiktaalik's rear end, scientists also think it might be the earliest example of hind legs, too. Or, at least, proto forms of the hind leg. That's significant, because it suggests that animals were developing features that would become four legs before they actually started spending a lot of time on land. Previously, researchers had speculated that two-legged creatures might have been the first to move about on land. Now, it looks like the first land-fish were scooting about with their weight supported on back limbs as well as front.
How to celebrate the discovery of a more-complete Tiktaalik fossil and a view of the earliest back legs ever seen by human eyes? How about with an evolution-themed "Wrecking Ball" parody, starring biologist and science TV host, Carin Bondar.
A better understanding how a sperm swims its way toward an egg could help inform new treatments for male infertility. Researchers from the University of York have now come up with a mathematical formula to model how large numbers of moving sperm interact with fluid they’re swimming through. From the University: By analysing the head […]
Dr Gale Ridge is a public entomologist at the Connecticut Agricultural Experiment Station, where an average of 23 people a day call, write or visit; an increasing proportion of them aren’t inquiring about actual insects, they’re suffering from delusional parasitosis, and they’re desperate and even suicidal.
Biologist Nipam Patel and his team at UC Berkeley study how butterflies develop wing shape and color by performing surgery on caterpillars, creating translucent windows in their cocoons.
The Raspberry Pi Foundation has done outstanding work packing a fully capable desktop computer into a package the size of a deck cards—especially one that only costs $35. But if you already have a working laptop, why should you care? Oh, how much you have to learn. Besides operating well as a compact digital media hub, […]
Custom coffee vessels are the perfect piece of office flair, but it’s just a matter of time before your VOTE FOR PEDRO mug will start to lose its relevant wit. Why not have a new one every day, with whatever silly nonsense you want sticking off the sides? You can save big on your novelty […]
The Lightning port has thus far resisted the cruel fate that befell the headphone jack, and despite rumors that it may be disappearing come iPhone 8, for the present and foreseeable future, Lightning cables are a hot commodity for iPhone users. As such, we must make do in this strange time in which long, glorified […]