News articles tagged with 'ancestor' (Page 10)
Same genetic machinery generates skin colour evolution in fish and humans
— 13 Dec 2007 20:11 | BiologyWhen humans began to migrate out of Africa about 100,000 years ago, their skin colour gradually changed to adapt to their new environments. And when the last Ice Age ended about 10,000…
Long-established genes' losses contribute to human evolution
— 12 Dec 2007 00:23 | BiologyWhile it is well understood that the evolution of new genes leads to adaptations that help species survive, gene loss may also afford a selective advantage. A group of scientists at…
Earliest birds acted more like turkeys than common cuckoos
— 5 Nov 2007 18:44 | Geology and palaeontologyThe earliest birds acted more like turkeys than common cuckoos, according to a new report in the 6 November issue of Current Biology, a publication of Cell Press. By comparing the claw…
Researchers posit new ideas about human migration from Asia to Americas
— 27 Oct 2007 07:38 | Geology and palaeontologyQuestions about human migration from Asia to the Americas have perplexed anthropologists for decades, but as scenarios about the peopling of the New World come and go, the big questions…
Old developmental pathways spawn evolutionary changes
— 7 Sep 2007 17:12 | BiologyWhen the larvae of the primitive social insect Polistes metricus, a paper wasp, slips into the quiet pupal stage, she doesn't know if she'll arise a worker or gyne (future queen) -…
Rise of dinosaurs in Late Triassic more gradual than once thought
— 20 Jul 2007 10:09 | Geology and palaeontologyFossils discovered in the oft-painted arroyos of northern New Mexico show for the first time that dinosaurs and their non-dinosaur ancestors lived side by side for tens of millions…
Sea anemone genome provides new view of our ancestors
— 6 Jul 2007 03:11 | BiologyThe first analysis of the genome of the sea anemone shows it to be nearly as complex as the human genome, providing major insights into the common ancestor of not only humans and sea…
Remains of earliest giant panda discovered
— 19 Jun 2007 00:02 | Geology and palaeontologyAlthough it may sound like an oxymoron, a University of Iowa anthropologist and his colleagues report the first discovery of a skull from a pygmy-sized giant panda - the earliest-known…
Ancient amphibians evolved a bite before migrating to dry land
— 18 Apr 2007 00:05 | Geology and palaeontologyAncient aquatic amphibians developed the ability to feed on land before completing the transition to terrestrial life, researchers from Harvard University report this week in the Proceedings…