When did the Galápagos tortoises become giant?
Researchers analyzed new fossils from Ecuador that suggested the ancestors of Galápagos giant tortoises inhabited northern South America…
Category: Zoology
This new adrenal cell makes mice better parents
Scientists found a new type of cell in the adrenal glands of monogamous mice that promotes parenting behaviors.
Fruit flies use diverse senses to sniff out their surroundings
Scientists found cosmopolitan fruit flies have different genes for smelling and tasting that help them adapt to diverse habitats.
Scientists grew human kidneys inside pig embryos
Scientists developed kidneys with a mixture of human and pig cells inside pig embryos, to test whether they were viable for human…
How did humans learn to speak?
Scientists compared parts of the brain that correlate to speech in humans and primates to understand how speech evolved in humans.
A trilobite’s last supper
Paleontologists described a trilobite fossil preserved in 3D with its gut contents intact.
Researchers created hybrid monkeys from stem cells
Scientists in China made live monkey hybrids using cells from embryos, to help them study how animals heal and reproduce.
Scientists described a couch potato cave salamander called the olm
Researchers tracked a species of large cave salamanders for several years to see how they survived their low-energy surroundings. It turns…
Dolphins have special whistles for their young
Researchers found bottlenose dolphins modify the pitch and range of whistles when communicating with their calves, similar to how humans…
Northern elephant seals sleep in a deep diving spiral
Scientists tracked the brain activity of northern elephant seals to find out how they sleep. They found the seals sleep only 2 hours per day…