Reference Terms
from Wikipedia, the free encyclopedia
Marsupial
Marsupials are mammals in which the female typically has a pouch in which it rears its young through early infancy. They differ from placental mammals (Placentalia) in their reproductive traits. The early birth of marsupials removes the developing young much sooner than in placental mammals, and marsupials have not needed to develop a complex placenta to protect the young from its mother's immune system. Early birth places the tiny newborn marsupial at greater risk, but significantly reduces the risks associated with pregnancy, as there is no need to carry a large fetus to full-term in bad seasons. There are about 334 species of marsupials, over 200 of them native to Australia and nearby islands to the north.
Related Stories
1
2
Plants & Animals News
August 1, 2025
Aug. 1, 2025 — Ape behavior just got a name upgrade — “scrumping” — and it might help explain why humans can handle alcohol so well. Researchers discovered that African apes regularly eat overripe, ...
July 29, 2025 — A team at the University of Florida used drones and smart modeling to accurately count over 41,000 endangered turtles nesting along the Amazon’s Guaporé River—revealing the world’s largest known turtle nesting site. Their innovative ...
July 28, 2025 — Eggs are finally being vindicated after decades of cholesterol-related blame. New research from the University of South Australia reveals that eggs, despite their cholesterol content, aren't the dietary villains they've long been made out to be. ...
July 27, 2025 — Mesopelagic fish, long overlooked in ocean chemistry, are now proven to excrete carbonate minerals much like their shallow-water counterparts—despite living in dark, high-pressure depths. Using the deep-dwelling blackbelly rosefish, researchers ...
July 26, 2025 — A groundbreaking study has revealed that the mass administration of ivermectin—a drug once known for treating river blindness and scabies—can significantly reduce malaria transmission when used in conjunction with bed ...
July 25, 2025 — Fermenting stevia with a banana leaf-derived probiotic turns it into a powerful cancer-fighting agent that kills pancreatic cancer cells while sparing healthy ones. The secret lies in a metabolite called CAME, produced through microbial ...
July 25, 2025 — Millipedes, often dismissed as creepy crawlies, may hold the secret to future painkillers and neurological drugs. Researchers at Virginia Tech discovered unique alkaloid compounds in the defensive secretions of a native millipede species. These ...
July 23, 2025 — Scientists have discovered a sugar compound from deep-sea bacteria that can destroy cancer cells in a dramatic way. This natural substance, produced by microbes living in the ocean, causes cancer cells to undergo a fiery form of cell death, ...
July 22, 2025 — New research from the University of Sydney sheds light on how coronaviruses emerge in bat populations, focusing on young bats as hotspots for infections and co-infections that may drive viral ...
July 21, 2025 — What scientists once dismissed as junk DNA may actually be some of the most powerful code in our genome. A new international study reveals that ancient viral DNA buried in our genes plays an active role in controlling how other genes are turned on ...
July 21, 2025 — A scorching marine heatwave from 2014 to 2016 devastated the Pacific coast, shaking ecosystems from plankton to whales and triggering mass die-offs, migrations, and fishery collapses. Researchers ...
July 21, 2025 — Gene editing may hold the key to rescuing endangered species—not just by preserving them, but by restoring their lost genetic diversity using DNA from museum specimens and related species. Scientists propose a visionary framework that merges ...
Latest Headlines
updated 12:56 pm ET
Aug. 1, 2025 — About 9 million years ago, a wild interspecies fling between tomato-like plants and potato relatives in South America gave rise to one of the ...
July 30, 2025 — Scientists have used artificial intelligence to upgrade plant immune systems, potentially revolutionizing how crops like tomatoes and potatoes can defend against harmful bacteria. By reengineering ...
July 29, 2025 — A fish thought to be evolution’s time capsule just surprised scientists. A detailed dissection of the coelacanth — a 400-million-year-old species ...
July 29, 2025 — Scientists at UC Merced have engineered artificial cells that can keep perfect time—mimicking the 24-hour biological clocks found in living organisms. By reconstructing circadian machinery inside ...
July 29, 2025 — In the quest to understand how and why early humans started walking on two legs, scientists are now looking to chimpanzees living in dry, open savannah-like environments for clues. A new study ...
July 24, 2025 — A tiny, overlooked wrist bone called the pisiform may have played a pivotal role in bird flight and it turns out it evolved far earlier than scientists thought. Fossils from bird-like dinosaurs in ...
July 24, 2025 — Half a billion years ago, a strange sea-dwelling creature called Mollisonia symmetrica may have paved the way for modern spiders. Using detailed fossil brain analysis, researchers uncovered neural ...
July 23, 2025 — What made ribose the sugar of choice for life's code? Scientists at Scripps Research may have cracked a major part of this mystery. Their experiments show that ribose binds more readily and ...
July 22, 2025 — Scientists have uncovered hidden bony armor—called osteoderms—beneath the skin of 29 goanna species across Australasia, a discovery that ...
July 19, 2025 — Romaine lettuce has a long history of E. coli outbreaks, but scientists are zeroing in on why. A new study reveals that the way lettuce is irrigated—and how it’s kept cool afterward—can make ...