Cave-dwelling bugs in Brazil, belonging to the rare Neotrogla genus, set themselves apart in more ways than one, National Geographic reported.
Scientists studying the bugs found that the females possess genitalia structurally and functionally similar to a penis, while the males use a vagina-like opening to distribute their sperm. The researchers published their study in the journal Current Biology.
Subscribe to The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.
Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
-
The best homes of the yearFeature Featuring a grand turret entrance in New York and built-in glass elevator in Arizona
-
Nordstrom family, investor to take retail chain privateSpeed Read The business will be acquired by members of the family and El Puerto de Liverpool, a Mexican real estate company
-
Biden commutes most federal death sentencesSpeed Read The president downgraded the punishment of 37 of 40 prisoners on death row to life in prison without parole
-
US won its war on 'murder hornets,' officials saySpeed Read The announcement comes five years after the hornets were first spotted in the US
-
Dark energy data suggest Einstein was rightSpeed Read Albert Einstein's 1915 theory of general relativity has been proven correct, according to data collected by the Dark Energy Spectroscopic Instrument
-
New DNA tests of Pompeii dead upend popular storiesSpeed Read An analysis of skeletal remains reveals that some Mount Vesuvius victims have been wrongly identified
-
NASA's Europa Clipper blasts off, seeking an oceanSpeed Read The ship is headed toward Jupiter on a yearslong journey
-
Detailed map of fly's brain holds clues to human mindSpeed Read This remarkable fruit fly brain analysis will aid in future human brain research
-
Blind people will listen to next week's total eclipseSpeed Read While they can't see the event, they can hear it with a device that translates the sky's brightness into music
-
Melting polar ice is messing with global timekeepingSpeed Read Ice loss caused by climate change is slowing the Earth's rotation
-
An amphibian that produces milk?speed read Caecilians, worm-like amphibians that live underground, produce a milk-like substance for their hatchlings
