Rare cheetah mummies found in Saudi caves
NEW YORK (AP) — Scientists have uncovered the mummified remains of cheetahs from caves in northern Saudi Arabia.…
Jellyfish sleep like humans — even though they don’t have brains
The upside-down jellyfish Cassiopea andromeda sleeps for roughly 8 hours a day.Credit: Shahar Shabtai/Alamy Neither jellyfish nor sea…
Some animals have evolved extreme ways to sleep in precarious environments
Every animal with a brain needs sleep — and even a few without a brain do, too. Humans…
He Was Obsessed With the ‘Most Intriguing Creatures’
Iain Douglas-Hamilton, a British-born zoologist and conservationist who dedicated much of his life to protecting elephants, has…
A whale-surfing fish hitches the ocean’s wildest joyride
WELLINGTON, New Zealand (AP) — There are easier ways to cross an ocean, but few are as slick…
its secret could help extend human lifespan
The bowhead whale (Balaena mysticetus) can live for more than 200 years, thanks in part to a highly…
Glowing sperm helps to reveal secrets of mosquito sex
Sex between Aedes aegypti mosquitoes lasts about 14 seconds.Credit: Jacopo Razzauti/The Rockefeller University Female mosquitoes that transmit dengue…
Serial innovations by Asgard archaea shaped the DNA replication machinery of the early eukaryotic ancestor
O’Donnell, M., Langston, L. & Stillman, B. Principles and concepts of DNA replication in bacteria, archaea, and eukarya.…
A Carnian theropod with unexpectedly derived features during the first dinosaur radiation
Nesbitt, S. J. et al. Ecologically distinct dinosaurian sister group shows early diversification of Ornithodira. Nature 464, 95–98…
Lifetime expression of egg rejection behaviour in Eurasian magpies is associated with variation in a polymorphic genetic marker
Rothstein, S. I. Mechanisms of avian egg recognition: Possible learned and innate factors. Auk 91, 796–807 (1974). Google…
Twenty years of tuberculosis-driven selection shaped the evolution of the meerkat major histocompatibility complex
Fijarczyk, A. & Babik, W. Detecting balancing selection in genomes: limits and prospects. Mol. Ecol. 24, 3529–3545 (2015).…
The northward migration of great white sharks, by the numbers
SCARBOROUGH, Maine (AP) — New data shows that great white sharks are spending more time in the chilly…