Scientists discovered the first insects with sex-reversed genitalia in Brazilian caves. Yes, by sex reversed we mean that the female insects have penis-like genitalia and the males have vagina-like ...

Scientists studied the internal anatomy that make a female-male role reversal possible in a group of Brazilian cave insects. By Jack Tamisiea The penis has a variety of peculiar shapes and sizes: the ...

WASHINGTON (Reuters) - This may be the role reversal to end all role reversals. Scientists on Thursday described four insect species that dwell in extremely dry caves in Brazil, feed on bat guano and ...

Burrowing bees generally prefer to make their nests in the open, but some 20,000 years ago their ancestors lived in a cave ...

Learn how environmental constraints and a lack of soil led ancient bees to reuse fossil cavities in a Caribbean cave, leaving ...

In a Caribbean cave where owls once spat out the bones of their prey, scientists have uncovered a nesting strategy that ...

And, researchers have just discovered, ancient bees would use the bones’ empty tooth sockets as nests. A new study published in the journal Royal Society Open Science documents this discovery, which ...

In Mexico’s Cueva del Azufre (the Sulphur Caves), a small fish called the shortfin molly (Poecilia mexicana) is on the way to becoming two separate species. Those that live in the dark interior of the ...

For the first time ever, paleontologists have found fossil traces of burrowing bees nesting inside the buried bones of other ...

In a Caribbean cave, researchers discovered hundreds of fossils with bee nests within them. It is the first time this behavior has been recorded, a new study finds.

The spider cricket is a common American pest. This insect gets its name from its spindly, spider-like legs, but it’s not a true spider. This pest typically lives in caves and forests, but it can ...