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Mammal
The mammals are the class of vertebrate animals characterized by the production of milk in females for the nourishment of young, from mammary glands present on most species and specialized skin glands in monotremes that seep or ooze milk; the presence of hair or fur; specialized teeth; three minute bones within the ear; the presence of a neocortex region in the brain; and endothermic or "warm-blooded" bodies.
Note: The above text is excerpted from the Wikipedia article "Mammal", which has been released under the GNU Free Documentation License.
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November 17, 2024
Nov. 13, 2024 — A 'one of a kind' fossil discovery could transform our understanding of how the unique brains and intelligence of modern birds evolved, one of the most enduring mysteries of vertebrate ...
Nov. 12, 2024 — Roughly 90 million years ago, climatic conditions in Antarctica were suitable for resin-producing trees. Researchers have now made the southernmost discovery of amber in the ...
Nov. 8, 2024 — Tool use isn't unique to humans. Chimpanzees use sticks as tools. Dolphins, crows, and elephants are known for their tool-use abilities, too. Now a report highlights elephants' remarkable skill in using a hose as a flexible shower head. As an ...
Nov. 4, 2024 — Extraordinarily well preserved fossils of feathered dinosaurs and other creatures got that way after being frozen in time by by volcanic eruptions, researchers have long suggested. Not so fast, says ...
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Nov. 16, 2024 — Fish stocks along the West African coast have declined significantly over the past five decades, threatening food security and the livelihoods of the ...
Nov. 16, 2024 — The Earth's total amount of freshwater dropped abruptly starting in May 2014 and has remained low ever since. The shift could indicate Earth's continents have entered a persistently drier ...
Nov. 16, 2024 — To stem the surging antibiotic resistance public health crisis, scientists seek solutions inside the mechanics of bacterial infection. A new study has found a vulnerability related to magnesium ...
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Nov. 15, 2024 — Mountain lions in greater Los Angeles are proactively shifting their activity to avoid interacting with cyclists, hikers, joggers and other ...
Nov. 15, 2024 — Animals and plants also live and thrive on public squares. This creates opportunities for greater biodiversity and well-being for the human population. Researchers have studied at 103 locations in ...
Nov. 15, 2024 — Rainforest protection is not only good for biodiversity and the climate -- it also noticeably improves the health of humans who live in the corresponding regions. Researchers show that measures to ...
Nov. 15, 2024 — Hunted nearly to extinction during 20th century whaling, the Antarctic blue whale, the world's largest animal, went from a population size of roughly 200,000 to little more than 300. The most recent ...
Nov. 15, 2024 — Stress is a double-edged sword when it comes to memory: stressful or otherwise emotional events are usually more memorable, but stress can also make it harder for us to retrieve memories. Now, ...