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 ...

Deep inside a Caribbean cave, paleontologists have uncovered a scene that reads like gothic natural history: tiny bees once ...

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 ...

Researchers at Thaksin University have identified a previously unknown cave-dwelling springtail, marking a significant ...

Paleontologists have discovered the first known fossilized bee nests built inside ancient bones, uncovered in a cave that ...

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 ...

Female insects with "penises" have been discovered in Brazil - the first example of an animal with sex-reversed genitalia, scientists say. Neotrogla females insert the erectile organs into males' ...