Search Results for: Vertebrates
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1,539 results
1,539 results for: Vertebrates
- Paleontology
Sea Dragons
About 235 million years ago, as the earliest dinosaurs stomped about on land, some of their reptilian relatives slipped back into the surf, took on an aquatic lifestyle, and became ichthyosaurs—Greek for fish lizards.
- Earth
Hawaii’s Hated Frogs
Wildlife officials in Hawaii are investigating unconventional pesticides to eradicate invasive frogs—or at least to check their advance.
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Breathtaking Science
A small region within the brainstem creates the normal breathing rhythm.
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After West Nile Virus
As biologists try to estimate the impact of West Nile virus on wildlife, it's not the famously susceptible crows that are causing alarm but much rarer species.
- Paleontology
Learning from the Present
New field studies of unfossilized bones, as well as databases full of information about current fossil excavations and previous fossil finds, are providing insights into how complete—or incomplete—Earth's fossil record may be.
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The Body Electric
An electric field inside an embryo may tell it whether to place an internal organ on its left or right side.
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Visionary Research
Scientists are debating why primates evolved full color vision and whether that development led to a reduced sense of smell.
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When to Change Sex
A research team contends that animals that routinely change sex, even those prompted by mate loss or other social cues, tend to do so when they reach 72 percent of their maximum size.
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Reef Relations
The discovery of humanlike genes in coral means that the common ancestor of both humans and coral was more complex than previously assumed.
- Paleontology
L.A.’s Oldest Tourist Trap
Modern excavations at the La Brea tar pits are revealing a wealth of information about local food chains during recent ice ages, as well as details about what happened to trapped animals in their final hours.
- Anthropology
Monkey Business
They're pugnacious and clever, and they have complex social lives—but do capuchin monkeys actually exhibit cultural behaviors?
- Ecosystems
One-Celled Socialites
A wave of research on the social lives of bacteria offers insights into the evolution of cooperation and may lead to medical breakthroughs that neutralize virulent bacterial strains.
