Reference Terms
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Amphibian
Amphibians generally spend part of their time on land, but they do not have the adaptations to an entirely terrestrial existence found in most other modern tetrapods (amniotes).
Note: The above text is excerpted from the Wikipedia article "Amphibian", which has been released under the GNU Free Documentation License.
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Plants & Animals News
December 12, 2024
Dec. 9, 2024 — Thanks for a powerful antioxidant, Deinococcus radiodurans can withstand radiation doses 28,000 times greater than what would kill a human. In a new study, scientists discovered how the antioxidant works. Finding could drive the development of ...
Dec. 5, 2024 — A new study suggests that the fundamental abilities underlying human language and technological culture may have evolved before humans and apes diverged millions of years ...
Dec. 3, 2024 — Brain tissue is among the most energetically costly in the body, and as a result, larger-brained mammals require more energy to support brain growth and maintenance. Exactly which biological changes allowed human ancestors to meet the very high ...
Dec. 4, 2024 — Scientists have uncovered the first direct evidence that ancient Americans relied primarily on mammoth and other large animals for food. Their research sheds new light on both the rapid expansion of humans throughout the Americas and the extinction ...
Latest Headlines
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Dec. 3, 2024 — Nitrogen oxide emissions from soil in California's Salton Sea air basin are 10 times larger than state estimates, finds a new study of rural Imperial and Coachella ...
Dec. 12, 2024 — Researchers are linking human activity to increased gene transfer from soil bacteria to ...
Dec. 11, 2024 — Researchers discovered a vulnerability in viral enzymes that could lead to novel treatments for diseases as diverse as COVID-19 and Ebola -- while also minimizing side effects and reducing the odds ...
Dec. 12, 2024 — Scientists have discovered that our specialized immune cells, called T cells, are what they eat -- their switch from functional to 'exhausted' depends on the switch from metabolizing acetate to ...
Dec. 12, 2024 — Colony surveys of common murres, an Alaskan seabird, show the full effects of the 2014-16 marine heat wave known as 'the blob.' Analysis of 13 ...
Dec. 11, 2024 — Researchers have discovered an 18-digit code that allows proteins to attach themselves to exosomes -- tiny pinched-off pieces of cells that travel ...
Dec. 11, 2024 — A new study sheds light on the lives of people who lived over 5,600 years ago near Kosenivka, Ukraine. Researchers present the first detailed ...
Dec. 12, 2024 — Using data from 23 studies of what psychologists call 'inequity aversion,' researchers combed through results of more than 60,000 observations involving 18 animal species. In what they said was the ...
Dec. 12, 2024 — Researchers have discovered a rare example of 'great fish parenting' with a common coral reef species found to actively protect their young by eating ...
Dec. 12, 2024 — A team analyzed the amino acids that affect the formation of spores in a bacterium that causes food poisoning, Clostridium perfringens, and ...