The ability, known as protrusion, allows fish to extend their jaw and snap up otherwise elusive prey, making them effective hunters.
The wing has the oldest occurrence of connective tissue in association with flight feathers of birds.
We have spiders to thank (or not to thank) for knees, with the consolation that spiders have 48 knees while we only have two.
The asteroid and volcanoes that did in the dinos was no match for a family of super tough beaver-like mammals.
Snakes lack limbs, but new research finds that they still have DNA crucial to limb development lurking in their genomes.
Viruses have just joined the tree of life in a dramatic way -- they even predate modern cells.
The largest meat-eating dinosaur ever discovered in Australia had sickle-shaped claws the size of chef's knives.
An exhaustive project traces the evolutionary relationships between all of the 2.3 million identified species of plants, animals, microbes and fungi on Earth.
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