Present-day katydids of the genus Arethaea, pictured here, have the same internal structures as those seen in a fossil from the Green River Formation. “Katydids are very rare in the fossil record, so ...

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 ...

CHAMPAIGN, Ill. — 50 million years ago in what is now northwestern Colorado, a katydid died, sank to the bottom of a lake and was quickly buried in fine sediments, where it remained until its ...

50 million years ago in what is now northwestern Colorado, a katydid died, sank to the bottom of a lake and was quickly buried in fine sediments, where it remained until its compressed fossil was ...

Genitals are among the fastest-evolving features in the animal kingdom. They’re also among the most diverse, arrayed in all shapes and sizes, adorned with spines, hooks and even teeth. Ducks have ...

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 ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Scientific American is part of Springer Nature, which owns or has commercial relations with thousands of scientific publications (many of them can be found at www ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. With their soft and spongy tissue, internal organs are rare in the ...

Genitals are among the fastest-evolving features in the animal kingdom. They're also among the most diverse, arrayed in all shapes and sizes, adorned with spines, hooks and even teeth. Ducks have ...