A whole-genome analysis suggests that polar bear numbers waxed and waned with climate change, and that the animals may have interbred with brown bears since becoming a distinct species millions of years ago.
Evolution
Jul 23, 2012
8
0
Gentoo penguins should be reclassified as four separate species, say scientists at the Milner Centre for Evolution at the University of Bath, after analysing the genetic and physical differences between populations around ...
Evolution
Nov 3, 2020
0
1274
According to the International Union for Conservation of Nature (IUCN), 21% of reptile species worldwide were threatened with extinction as of 2022. However, until recently there have been few details of the kinds of threats ...
A species of humpback dolphin previously unknown to science is swimming in the waters off northern Australia, according to a team of researchers working for the Wildlife Conservation Society, the American Museum of Natural ...
Plants & Animals
Oct 29, 2013
1
0
A set of Triassic archosaur fossils, excavated in the 1960s in Tanzania, have been formally recognized as a distinct species, representing one of the earliest-known members of the crocodile evolutionary lineage.
Evolution
Feb 10, 2022
0
164
,Climate change threatens plants and animals around the world, but some regions are particularly exposed. Some are vulnerable simply due to the huge diversity of species they harbor. Others will experience more acute climate ...
Ecology
Jun 28, 2024
0
1
The Bahama Woodstar is a hummingbird found in the Bahamas, and comprises two subspecies. One of these, Calliphlox evelynae evelynae, is found throughout the islands of the Bahamas, and especially in the northern islands. ...
Plants & Animals
Feb 12, 2015
0
1658
The Bachman's warbler, a songbird that was last seen in North America nearly 40 years ago, was a distinct species and not a hybrid of its two living sister species, according a new study in which the full genomes of seven ...
Ecology
Jun 23, 2023
0
2
An analysis of ancient DNA from a 100,000-year-old polar bear has revealed that extensive hybridization between polar bears and brown bears occurred during the last warm interglacial period in the Pleistocene, leaving a surprising ...
Plants & Animals
Jun 16, 2022
2
1072
Expeditions to northern Mozambique's remote mountains have uncovered a wealth of new species, including four pygmy chameleons.
Plants & Animals
Aug 15, 2014
0
0
