News tagged with evolutionary biology

Bats use blood to reshape tongue for feeding

Nectar-feeding bats and busy janitors have at least two things in common: They want to wipe up as much liquid as they can as fast as they can, and they have specific equipment for the job. A study in the Proceedings of th ...

May 06, 2013
not rated yet 0 | with audio podcast

A vertebrate family reunion

By demonstrating the close 'relatedness' of two primitive jawless fish, scientists begin to assemble a more accurate depiction of the early history of vertebrate evolution.

Apr 22, 2013
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Reproductive tract secretions elicit ovulation

Eggs take a long time to produce in the ovary, and thus are one of a body's precious resources. It has been theorized that the body has mechanisms to help the ovary ensure that ovulated eggs enter the reproductive tract at ...

Apr 17, 2013
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How some leaves got fat: It's the veins

A "garden variety" leaf is a broad, flat structure, but if the garden happens to be somewhere arid, it probably includes succulent plants with plump leaves full of precious water. Fat leaves did not emerge ...

Apr 11, 2013
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