(Phys.org) —Research published today looks at the evolutionary pathways to differences in bird plumage patterns between males and females – and concludes that birds are able to adapt their appearance with remarkable ease.
Evolution
Dec 18, 2013
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1
Despite their fearsome fangs, male sabertoothed cats may have been less aggressive than many of their feline cousins, says a new study of male-female size differences in extinct big cats.
Plants & Animals
Nov 5, 2009
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Scientists at Duke University Medical Center have found that larger fungal spores can be more lethal. Their findings about two different spore sizes of the fungus Mucor circinelloides, a pathogen that kills half or more of ...
Cell & Microbiology
Jun 16, 2011
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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
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46
Amphisbaenians are strange creatures. Like worms with vertebrae, scales, a large central tooth and sometimes small forearms, these reptiles live underground, burrowing tunnels and preying on just about anything they encounter, ...
Plants & Animals
Feb 12, 2024
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24
Which females do male lizards find to be the sexiest? Tracy Langkilde, an associate professor of biology at Penn State University, and Lindsey Swierk, a graduate student in Langkilde's lab, tackle this question by examining ...
Plants & Animals
Nov 5, 2013
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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
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363
In the bird world, male and female blue tits are hard to distinguish for the human observer. However, in the UV-range, visible to birds, the male is much more colourful. A closer look at the monogamous mating system of these ...
Evolution
Apr 3, 2013
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A new species of freshwater fish in the family Characidae, called Hyphessobrycon myrmex, exhibits an intriguing sexual dichromatism: Adult males are a deep reddish-orange, while females and juveniles are pale yellow. The ...
Plants & Animals
Dec 13, 2017
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10
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
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