442 results
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- Earth
Ancient marine reptiles losing their cool
Warm-bloodedness may help explain the creatures’ evolutionary success, a new study suggests.
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3-D Explorer Oceans: A Journey from the Surface to the Seafloor by Jen Green
3-D Explorer Oceans: A Journey from the Surface to the Seafloor by Jen Green Pop-up scenes, photos and illustrations portray colorful life in the sea’s depths. Silver Dolphin Books, 2009, 32 p., $17.95. 3-D EXPLORER OCEANS: A JOURNEY FROM THE SURFACE TO THE SEAFLOOR BY JEN GREEN
- Animals
Sonar causes rock-concert effect in dolphins
Test of recorded sonar causes temporary hearing impairment in dolphins.
- Life
One ocean, four (or more) killer whale species
A new genetic analysis splits killer whales into multiple taxa.
- Life
Evolutionary genetic relationships coming into focus
Researchers have filled in about 40 percent of the tree of life for mammals and birds, but other vertebrates lag behind.
- 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.
- Animals
Dolphins wield tools of the sea
A long-term study of dolphins living off Australia’s coast finds that a small number of them, mostly females, frequently use sea sponges to forage for fish on the ocean floor.
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The Wonders Inside: Bugs & Spiders by Jan Stradling
Illustrations for a young audience detail the anatomy and the ecosystems of these creatures. THE WONDERS INSIDE: BUGS & SPIDERS BY JAN STRADLING Silver Dolphin Books, 2009, 90 p., $19.95.
- Life
First songbird genome arrives with spring
The genome of a songbird has been decoded for the first time. Zebra finches join chickens as the only birds to have detailed maps of their genetic blueprints.
- Ecosystems
Sperm whales may team up to herd prey
Data recorders yield first hints of coordinated feeding behavior.
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All kinds of tired
Donkeys sleep about three out of each 24 hours. Certain reef fish spend the night moving their fins as if swimming in their sleep. Some biologists argue that all animals sleep in some form or another. But identifying sleep can get complicated. Insects have brain architecture so different from humans’, for example, that electrophysiological recordings […]
