Tree of Life
Plant Flower, Tree
Invertebrate Octopus, Ant, Bee, Butterfly, Spider, Lobster
Vertebrate Fish, Seahorse, Ray, Shark, Frog, Turtle, Tortoise, Dinosaur
Bird, Ostrich, Owl, Crow, Parrot
Mammal Bat, Rabbit, Giraffe, Camel, Horse, Elephant, Mammoth
Whale, Dolphin, Walrus, Seal, Polar Bear, Bear, Cat, Tiger, Lion, Dog, Wolf
Monkey, Chimpanzee, Human
These are organized by a classification scheme developed exclusively for Cosma. More…
crow : any of various large usually entirely glossy black passerine birds (family Corvidae and especially genus Corvus). — Wikipedia
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Can sound protect eagles from wind turbine...
on May 15, 2019 at 7:21 pm
Every year, bald and golden eagles are killed when they inadvertently fly into wind turbine blades. One possible way to prevent these deaths is to chase the birds away with acoustic signals—sound. To determine what types of sounds are most effective in deterring the birds, researchers at the University of Minnesota and their colleagues tested the behavioral responses of bald eagles to a battery of both natural and synthetic acoustic stimuli. […]
Critically endangered Hawaiian crows build first...
on May 15, 2019 at 10:50 am
Two Hawaiian crows, or alala, have done something momentous in the struggle to save the critically endangered species. […]
Scientists unearth 'most bird-like' dinosaur ever...
on May 14, 2019 at 2:00 pm
Researchers in Germany have unearthed a new species of flying dinosaur that flapped its wings like a raven and could hold vital clues as to how modern-day birds evolved from their reptilian ancestors. […]
Researchers study corvid speciation in restricted...
on March 27, 2019 at 12:35 pm
Carrion crows and hooded crows are almost indistinguishable genetically, and hybrid offspring are fertile. Ludwig-Maximilians-Universitaet (LMU) in Munich biologists now show that the two forms have remained distinct largely owing to the dominant role of plumage color in mate choice. […]
Why fly the coop? With shortage of mates, some...
on March 14, 2019 at 5:28 pm
It's not uncommon for young adults to pitch in and help out with the care of younger siblings. But it turns out that sometimes birds choose to become avian au pairs rather than raise their own brood. […]