Difference in body size (or sexual dimorphism) between males and females is common across the animal kingdom. One of the most extreme examples of sexual dimorphism is found in the cichlid fish species Lamprologous callipterus ...
Evolution
Feb 9, 2023
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28
The World Health Organization called Wednesday for vigilance after the recent detection of bird flu in mammals, but tried to calm fears that large-scale human outbreaks could be looming.
Veterinary medicine
Feb 8, 2023
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7
A team of biologists at Osaka City University, working with a colleague from the University of Neuchâte, reports that a type of cleaner fish can pass the mirror test and then recognize itself in a photograph. In their paper ...
Spider courtship boasts some of the most charismatic and strategic rituals in the animal kingdom: bondage worthy of the bedroom, percussive performances worthy of the drumline, silent sounds worthy of tradecraft. Still, arachnologists ...
Plants & Animals
Feb 7, 2023
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2
In the cloud forests of South America, amid the constant cacophony of bird and insect noise, a deafening blare pierces through the background from time to time. Belonging to the loudest known bird, the white bellbird, Procnias ...
Plants & Animals
Jan 31, 2023
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3
Scientists used to think power in animals played out in a tidy and simple way. Nature is a dog-eat-dog place. Rams butt heads in a thunderous spectacle, and the winning male gets to mate with a female. Bigger, stronger, meaner ...
Plants & Animals
Jan 30, 2023
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3
Conservationists at a UK zoo have captured the moment a rare tree kangaroo popped out of its mother's pouch for the first time, part of research aimed at helping the endangered species survive in the wild.
Plants & Animals
Jan 26, 2023
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27
Only males among the fish species crucian carp have developed a strategy to protect themselves from hungry predators, according to a new study from Lund University in Sweden published in the journal Evolution. The explanation ...
Plants & Animals
Jan 24, 2023
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3
Many important decisions boil down to a choice between the supposed safety of sticking with what we know and the risk of going out on a limb for a chance at getting something even better. Though risk-taking preferences vary ...
Plants & Animals
Jan 12, 2023
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41
A trio of researchers—one with the Indian government's Ministry of Earth Sciences, another with the Indian Institute of Technology Bombay and the third with the National Institute of Advanced Studies, also in India—has ...
