Researchers have proposed a new evolutionary model for the origin of a kingdom of viruses called Bamfordvirae, suggesting a billion-years evolutionary arms race between two groups within this kingdom and their hosts.
Evolution
May 2, 2023
0
125
The pygmy right whale (Caperea marginata) is the smallest of all baleen whales although it can grow to six meters in length and weigh up to three tons. The species occurs circumpolar in the Antarctic waters of the Southern ...
Evolution
Apr 20, 2023
0
75
Published in the Proceedings of the Royal Society B, a new study details unique findings, analysis and interpretation of saber-toothed cat fossils, offering a glimpse into how the fierce apex predators operated on the high ...
A toothy grinned monster was lurking in the basement collection of a museum in Canada: The fossilized jaw of a beast that once roamed the bluffs along the South Saskatchewan River, competing with saber-toothed cats (Smilodon) ...
Humans are an interesting mixture of altruism and competition. We work together well at times and at others we will fight to get our own way. To try to explain these conflicting tendencies, researchers have turned to the ...
Plants & Animals
Apr 4, 2023
0
76
Shoot for the moon. Even if you miss, you'll land on the next tree. Many groups of mammals seem to have taken this evolutionary advice to heart. According to our newly published paper in Science Advances, unrelated animals ...
Evolution
Mar 27, 2023
0
44
Our capacity to care about others may have very, very ancient origins, a new study suggests.
Plants & Animals
Mar 23, 2023
0
109
Imagine a vast, lush forest dominated by giant flightless birds and crocodiles. This was Australia's Red Center 25 million years ago. There lived several species of koala; early kangaroos the size of possums; and the wombat-sized ...
Paleontology & Fossils
Mar 22, 2023
0
179
Multilevel societies are among the most complex societies known in nature. They are organized like Russian nesting dolls—individuals belong to family groups, which belong to clans, which belong to tribes.
Plants & Animals
Mar 10, 2023
0
45
Africa, where humans first evolved, today remains a place of remarkable diversity. Diving into that variation, a new analysis of 180 Indigenous Africans from a dozen ethnically, culturally, geographically, and linguistically ...
Evolution
Mar 2, 2023
0
176
