mammals
Coverage of mammals in the Nexus archive.
- Mosquitoes carrying West Nile are in NYC: See where
West Nile virus has been detected in mosquitoes across all five boroughs of New York City. The virus, transmitted by mosquitoes, can infect humans, birds, horses, and other mammals, though many infected individuals show mild or no symptoms.
- The ability to regrow body parts is dormant in mammals, not lost
The article reveals that mammals possess a dormant ability to regrow body parts, suggesting this capacity has not been lost but remains inactive. Research challenges previous assumptions about regenerative limitations in mammals.
- Remarkable fossils rewrite the story of how animals conquered the land
Palaeontologists discovered new evidence indicating that the early ancestors of amphibians, reptiles, and mammals did not possess a larval stage with external gills, challenging previous assumptions about their transition to land.
- 289-million-year-old mummified reptile reveals how breathing began on land
A 289-million-year-old mummified reptile, Captorhinus aguti, has been discovered with evidence of a rib-powered breathing system, offering insights into how vertebrates transitioned to land. This finding redefines understanding of early terrestrial respiration in reptiles, birds, and mammals.