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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Long childhoods and extended parenting help young...
on June 1, 2020 at 11:15 am
Humans are unusual, even among primates, in the length of our "extended childhood." Scientists think that this period of childhood and adolescence, which gives us lots of time to explore, create, and learn, is a key reason why we are smart enough to learn skills that take years to master. But humans are not the only species with an extended childhood. Elephants, some bats, whales, dolphins, and some birds—especially corvids—also have them. But does an extended childhood confer […]
What information is coded in bird alarm calls—a...
on May 26, 2020 at 5:08 pm
Have you seen small birds nervously jumping up and down the branches and calling at a cat in a park? For a long time, scientists have been interested in what type of information about predators is coded in alarm calls; is it predator's species identity? Or their size? Or how dangerous it is? A recent study published in Ethology provides new discoveries in this field.
Microscopic feather features reveal fossil birds'...
on May 13, 2020 at 6:00 pm
Cassowaries are big flightless birds with blue heads and dinosaur-looking feet; they look like emus that time forgot, and they're objectively terrifying. They're also, along with their ostrich and kiwi cousins, part of the bird family that split off from chickens, ducks, and songbirds 100 million years ago. In songbirds and their relatives, scientists have found that the physical make-up of feathers produce iridescent colors, but they'd never seen that mechanism in the group that cassowaries […]
The impulse to garden in hard times has deep roots
on May 1, 2020 at 2:50 pm
The coronavirus pandemic has set off a global gardening boom.
Researchers traces the history of brain evolution...
on April 23, 2020 at 3:00 pm
An international team of evolutionary biologists and paleontologists have reconstructed the evolution of the avian brain using a massive dataset of brain volumes from dinosaurs, extinct birds like Archaeopteryx and the Great Auk, and modern birds.