Search Results for: Vertebrates
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- Life
Climate changes, and there goes the neighborhood
The ranges of rattlesnakes and voles are likely to shift drastically with warming, analyses of past changes suggest.
By Susan Milius - Life
Chicken cells have strong sense of sexual identity
In birds, hormones may not be the last word in determining males and females.
By Susan Milius - Paleontology
Dinos molted for a new look
In one species, adolescents appear to have sprouted a new type of feathers as they matured.
By Sid Perkins - Life
For ducks, penis length depends on the other guys
Male genitals grow longer with more competition from other males.
By Susan Milius - Paleontology
Feather-covered dinosaur fossils found
Scientists have uncovered a feather-laden, peacock-sized dinosaur that predates the oldest known bird.
By Sid Perkins -
Dawn of the Dinosaurs
Paleontologists probe the majestic reptiles’ origin and rise.
- Paleontology
Tyrannosaurs lived in the Southern Hemisphere, too
Australian fossils suggest the kin of T. rex dispersed globally 110 million years ago.
By Sid Perkins - Earth
Wringing hope from crashing biodiversity
Biodiversity losses have not slowed despite a treaty designed to protect variety in the natural world.
By Susan Milius - Paleontology
King of the ancient seas
Paleontologists discover fossilized skeleton of bus-sized marine reptile that had teeth with serrated edges.
By Sid Perkins - Animals
Mirror, mirror on the wall, you’re the scariest fish of all
That thing in the mirror may be more upsetting than a real fish.
By Susan Milius - Paleontology
Octopus origins
After examining more than 90 new specimens of Nectocaris pteryx, paleontologists put it near the root of the cephalopod evolutionary tree.
By Sid Perkins - Life
Spiders love sweet smell of blood perfume
For on spider species, feeding on blood-gorged mosquitoes adds charm to a mate
By Susan Milius