(PhysOrg.com) -- With its flamboyantly decorated plumage, the peacock is a classic example of how males among many bird species are more visually eye-catching than their female partners. But new research, led by Columbia ...
Plants & Animals
Dec 15, 2009
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Incipient sex chromosomes have been found in New Zealand's eponymous export, the kiwifruit. Researchers writing in the open access journal BMC Genomics have mapped the kiwifruit genome and pin-pointed the sex-determining ...
Cell & Microbiology
Mar 9, 2009
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The Dental Anthropology Group at the Centro Nacional de Investigación sobre la Evolución Humana (CENIEH) has published a paper in the American Journal of Biological Anthropology on the morphological differences between ...
Evolution
Mar 1, 2024
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5
If you think there were more mosquitoes this year than usual, you're not wrong.
Plants & Animals
Sep 22, 2023
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50
Biodiversity is increasingly diminished by humanity's many impacts, one major aspect of which is urbanization. Although there are a lot of studies reporting that urbanization influences wildlife population sizes and distributions, ...
Evolution
Sep 7, 2022
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38
In most animal species, males and females differ. This is true for people and other mammals, as well as many species of birds, fish and reptiles. But what about dinosaurs? In 2015, I proposed that variation found in the iconic ...
Paleontology & Fossils
Feb 2, 2022
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280
For generations, scientists have relied on a handful of organisms to study the fundamentals of biology. The usual suspects—fruit flies, zebrafish, and mice, among others—all have short lifespans, small body size, can ...
Plants & Animals
Dec 22, 2021
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Zoologists from Trinity College Dublin, working in tropical Southeast Asia, have uncovered a modern-day example of rapid evolution in action.
Plants & Animals
Oct 8, 2020
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4
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
Two new studies by Osaka University researchers provide insights on why male and female bodies of the same species differ. The studies show factors that regulate the expression of doublesex1, a gene responsible for the growth ...
Plants & Animals
Nov 8, 2017
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