Search results
2 days ago · The first sirenians were evolving at this time, and would eventually evolve into the extant manatees and dugongs. It is thought that millions of years after the Cretaceous-Paleogene extinction event , brain sizes of mammals now started to increase , "likely driven by a need for greater cognition in increasingly complex environments".
20 hours ago · Brandt (1855) was the first to propose dividing Rodentia into three suborders, Sciuromorpha, Hystricomorpha and Myomorpha, based on the development of certain muscles in the jaw and this system was widely accepted. Schlosser (1884) performed a comprehensive review of rodent fossils, mainly using the cheek teeth, and found that they fitted into ...
4 days ago · The Evolving Danger of the New Bird Flu. An unusual outbreak of the disease has spread to dairy herds in multiple U.S. states. April 22, 2024, 6:00 a.m. ET. Share full article. Hosted by Sabrina ...
20 hours ago · This expansive marine landscape creates a unique and rich habitat for an array of sea life. A visit to the Maldives is a journey into an underwater wonderland, highlighted by the archipelago’s ...
1 day ago · Once born, the offspring must find their way into the marsupium, if present, to hold on to and nurse from a teat. Baby opossums, like their Australian cousins, are called joeys. [36] Female opossums often give birth to very large numbers of young, most of which fail to attach to a teat , although as many as thirteen young can attach, [37] and ...
4 days ago · Ancient Earth. Dive into the most dramatic events in Earth’s 4.5-billion-year history, from its birth to the emergence of humanity. How did a hellscape of molten lava transform into a lush ...
5 days ago · The World Cetacea Database. The Cetacea (whales, dolphins and porpoises) currently include 89 species that inhabit the world's oceans, lakes and rivers. Some are cosmopolitan, occurring in marine waters from pole to pole, while others are restricted by ecology and population status to small ranges of a few thousand square kilometers or less.
