Female ducks have evolved an intriguing way to avoid becoming impregnated by undesirable but aggressive males endowed with large corkscrew-shaped penises: vaginas with clockwise spirals that thwart oppositely spiraled males.
Plants & Animals
Dec 23, 2009
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The simple things in life sometimes bring the greatest joy—like feeding the ducks at your local pond. The next time you pay your feathered friends a visit, consider introducing some variety into the food you give them. ...
Plants & Animals
Jan 6, 2021
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The first-ever record of a tumourous facial swelling found in a fossil has been discovered in the jaw of the dwarf dinosaur Telmatosaurus transsylvanicus, a type of primitive duck-billed dinosaur known as a hadrosaur.
Archaeology
Jul 5, 2016
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645
(Phys.org) —A relatively rare plant that flowers only once in seven years and then dies has blossomed - delighting horticulturalists at the University of Aberdeen.
Plants & Animals
Jul 9, 2013
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2
This star-studded image shows us a portion of Messier 11, an open star cluster in the southern constellation of Scutum (the Shield). Messier 11 is also known as the Wild Duck Cluster, as its brightest stars form a "V" shape ...
Astronomy
Mar 29, 2019
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279
(PhysOrg.com) -- The male Mallard duck (Anas platyrhynchos) is known for its colorful neck and a bill that ranges in color from dull green to bright yellow, depending on the amount of carotenoid pigment it contains. Females ...
Scientists in Alaska have discovered that lingering oil from the 1989 Exxon Valdez spill is still being ingested by some wildlife more than 20 years after the disaster. The research, published in Environmental Toxicology ...
Environment
Apr 14, 2010
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A new study by a Canadian Museum of Nature scientist helps answer a long-standing question in palaeontology—how numerous species of large, plant-eating dinosaurs could co-exist successfully over geological time.
Archaeology
Jul 10, 2013
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A rare, mummified specimen of the duck-billed dinosaur Edmontosauraus regalis described in the Cell Press journal Current Biology on December 12 shows for the first time that those dinosaurs' heads were adorned with a fleshy ...
Archaeology
Dec 12, 2013
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A newly discovered extinct duck that lived in ancient Aotearoa New Zealand could be key to dating other finds from an ancient lake bed uncovered in St Bathans, Central Otago.
Paleontology & Fossils
Feb 23, 2022
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106
Duck is the common name for a large number of species in the Anatidae family of birds, which also includes swans and geese. The ducks are divided among several subfamilies in the Anatidae family; they do not represent a monophyletic group (the group of all descendants of a single common ancestral species) but a form taxon, since swans and geese are not considered ducks. Ducks are mostly aquatic birds, mostly smaller than the swans and geese, and may be found in both fresh water and sea water.
Ducks are sometimes confused with several types of unrelated water birds with similar forms, such as loons or divers, grebes, gallinules, and coots.
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