When the hyoliths once roamed

Not all of the extinct groups of animals are large, charismatic, dinosaur-like creatures. Although these may capture our imagination, much of the life that has perished over Earth's history is represented by more minuscule creatures. One such group is known as the hyoliths. Hyolith fossils have been found on all seven continents and appear to have lived from ~541 to 252 million …

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Why pandas can’t taste meat

Many animals are omnivorous, having a variegated diet ranging from vegetation to fruit, meat to insects, and a host of other items. Consequently, being able to taste and distinguish these foods likely aids in acquiring items that satisfy particular dietary needs. Having a specialized diet, on the other hand, eliminates the need to taste everything. …

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