Goliath Birdeater: Images of a Colossal Spider
goliath birdeater spider
October 17th, 2014
Imagine a spider as big as a child's forearm that weighs as much as a puppy. That's how huge the South American Goliath birdeater — arguably the world's largest spider — can be.
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Animal Sex: How Tree Frogs Do it
A pair of red-eyed tree frogs (<em>Agalychnis callidryas</em>) mating in the wild.
October 16th, 2014
Not unlike humans, male tree frogs call on females to begin the mating game, and females prefer long calls.
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Goliath Encounter: Puppy-Sized Spider Surprises Scientist in Rainforest
goliath birdeater spider
October 17th, 2014
Entomologist Piotr Naskrecki was taking a nighttime walk in the rainforest in Guyana, when he came across a "Goliath birdeater," possibly the world's largest spider.
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Eyeless Swimmer: Bizarre Primitive Animal Is Your Cousin
Fossils of a weird eyeless creature called a vetulicolian have been discovered on Kangaroo Island in Australia.
October 17th, 2014
Strange vetulicolians were among the earliest animals on Earth. Now, researchers find an anatomical surprise that puts these creatures in their place on the tree of life.
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Giant, Extinct Kangaroos Probably Didn't Hop
Extinct kangaroo cartoon
October 15th, 2014
The ancestors of modern-day kangaroos, giant marsupials with rabbitlike faces, may have walked upright on two feet, sans any hopping, a new study finds.
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Killer Whales Learn How to Speak Dolphin
Killer whale in the water
October 10th, 2014
Killer whales are known for their haunting songs consisting of complex whistles and clicks, but they can also learn "dolphin speak," a new study finds.
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If Sharks Feel Pain, Why Are They Not Better Protected? (Op-Ed)
sharks, shark week, endangered species
October 17th, 2014
When a shark is caught for sport, it often dies from its injuries — why are sharks not protected the way other animals are?
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Photos: Strange, Eyeless Creatures from the Cambrian Period
Fossils of a weird eyeless creature called a vetulicolian have been discovered on Kangaroo Island in Australia.
October 17th, 2014
Fossils of bizarre, figure-8 shaped creatures called vetulicolians that lived during the Cambrian Period have now been discovered. And they are our cousins.
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Fast Camouflage: How the Goby Changes Color in One Minute
Goby camouflage test
October 15th, 2014
The unassuming rock goby, a small fish that can be found in rock pools around the United Kingdom, southern Europe and North Africa, is a master of camouflage, a new study finds.
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