Animals
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Animals
Don’t mess with a frustrated fish
When a trout doesn't get the snack it expected, look out. These fish get aggressive. Sometimes they can defeat even bigger fish.
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Animals
These insects thirst for tears
In some parts of the world, insects will drop by for a savory beverage. Interestingly, neither a croc — nor a scientist who offered his eyes up to ‘tear-sipping’ bees — seemed bothered much by the freeloaders.
By Janet Raloff -
Animals
One plus to wearing stripes
A zebra’s black-and-white coat doesn’t offer cooling or camouflage, researchers find. Instead, its stripes appear to keep away biting flies — and deadly diseases.
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Animals
Sea otters picked up swine flu
A new study finds that large numbers of sea otters off of the U.S. Pacific coast have been exposed to the ‘pandemic’ type of this killer virus.
By Janet Raloff -
Animals
When a species can’t stand the heat
When temperatures rise, New Zealand’s tuatara produce more males. With global warming, that could leave the ancient reptile species with too few females to avoid going extinct.
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Animals
Explainer: How invasive species ratted out the tuatara
The introduction of rats to New Zealand led to huge population losses of the ancient tuatara. These uncommon reptiles vanished from the mainland. This left isolated populations to survive on several dozen isolated islands.
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Animals
Kangaroos have ‘green’ farts
The farts and belches of these animals contain less methane than do those from other big grass grazers. Microbes in their digestive tract appear to explain the ‘roos lower production of this greenhouse gas, a new study finds.
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Animals
Pythons seem to have an internal compass
The giant, Burmese pythons living in Florida’s Everglades like their adopted home. And new research shows they can find their way back to it if people try to move them somewhere else. Not all snakes will do this.
By Susan Milius -
Animals
Quieter vibes for city spiders
How much a web vibrates affects how well a spider senses when that web has captured prey. But webs attached to concrete, plastic and other artificial materials vibrate less than do those built on natural materials, such as twigs or leaves.
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Animals
Passing diseases from bee to bee
A study finds that the viruses and parasites that plague honeybees can infect bumblebees too, sickening another important pollinator.
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Animals
‘Crazy’ ant fight
By neutralizing the poison produced by fire ants, ‘crazy’ ants can survive heated battles. And that may help explain why crazy ants are edging out fire ants in parts of the southern United States.
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Animals
We are stardust
Everything making up Earth and what’s now living upon it — from trees and people to our pets and their fleas — owes their origins to the elements forged by ancient stars.
By Beth Geiger