Dinosaur frills were likely the result of sexual selection
Why dinosaurs evolved such a huge diversity of crests and frills on their skulls has long been an enigma.
Why dinosaurs evolved such a huge diversity of crests and frills on their skulls has long been an enigma.
Evolution
Feb 8, 2021
0
184
A new study by researchers at the University of Chicago and the City College of New York (CCNY) has identified a unique, genetic "mimicry switch" that determines whether or not male and female Elymnias hypermnestra palmflies ...
Plants & Animals
Jan 13, 2021
0
192
Male lions typically have manes. Male peacocks have six-foot-long tail feathers. Female eagles and hawks can be about 30% bigger than males. But if you only had these animals' fossils to go off of, it would be hard to confidently ...
Archaeology
Aug 27, 2020
0
363
Scientists worldwide have long debated our ability to identify male and female dinosaurs. Now, research led by Queen Mary University of London has shown that despite previous claims of success, it's very difficult to spot ...
Plants & Animals
May 12, 2020
1
1039
Paleobiologists from the University of Zurich have discovered exceptional specimens in Venezuela and Colombia of an extinct giant freshwater turtle called Stupendemys. The carapace of this turtle, which is the largest ever ...
Archaeology
Feb 12, 2020
1
1756
Elk have antlers. Rams have horns. In the animal kingdom, males develop specialized weapons for competition when winning a fight is critical. Humans do too, according to new research from the University of Utah. Males' upper ...
Plants & Animals
Feb 5, 2020
12
3024
The lengths that some males go to attract a mate can pay off in the short-term. But according to a new study from scientists at the Smithsonian's National Museum of Natural History (NMNH), extravagant investments in reproduction ...
Ecology
Apr 11, 2018
0
40
A paleontologist at the Canadian Museum of Nature is countering decades of studies that assert that some dinosaurs can be identified as male or female based on the shapes and sizes of their bones.
Archaeology
Mar 29, 2017
0
16
A team of scientists at The Cleveland Museum of Natural History, Australia, and Germany discovered that the orchid mantis looks like a flower due to the exploitation of pollinating insects as prey by its praying mantis ancestors. ...
Plants & Animals
Dec 1, 2016
0
388
Lucy and other members of the early hominid species Australopithecus afarensis probably were similar to humans in the size difference between males and females, according to researchers from Penn State and Kent State University.
Archaeology
Apr 28, 2015
0
46