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Why did some mammals develop tusks?（图）
二齿兽 哺乳动物 脊椎动物
2023/6/21
Awide array of animals have tusks, including elephants, walruses, warthogs, hippos, and even the much smaller hyrax, which look like guinea pigs and are about the size of domestic cats. The other thin...
Fossils support new hypothesis for origin of hoofed mammals（图）
Fossils support new hypothesis origin hoofed mammals
2020/12/11
New research published in the Journal of Vertebrate Paleontology describes a fossil family that illuminates the origin of perissodactyls -- the group of mammals that includes horses, rhinos ...
Researchers study catastrophic disease events in marine mammals（图）
Researchers catastrophic disease events marine mammals
2020/7/3
People are beginning to understand, on a very personal level, the ways in which infectious diseases can devastate life. But disease outbreaks are not confined to humans nor to life on land.Mass mortal...
Six million years ago, atmospheric shifts led to increased diversity of grassland mammals（图）
Six million years ago atmospheric shifts grassland mammals
2019/10/30
Six million years ago, grass-eating mammals became more diverse in South America. Shifts in tropical atmospheric circulation known as Hadley circulation led to changes in climate and vegetation, espec...
Changes in conservation planning can benefit vulnerable mammals
Changes conservation planning vulnerable mammals
2017/7/24
Right now, a prairie dog in Colorado is busy increasing soil carbon retention, increasing water infiltration, and clipping vegetation that will help maintain local grasslands and provide nut...
Infectious disease transmission in fish,mammals,other animals has implications for humans
Infectious disease transmission fish mammals other animals implications for humans
2017/4/27
Scientists once thought that being part of a community would protect animal populations from infectious disease outbreaks, but now they've learned otherwise, according to a study published this week i...
Changing Views of Evolutionary Factors at Work on Earliest Mammals
Changing Views Evolutionary Factors Earliest Mammals
2016/11/29
Using 3D-printed replicas of 200-million-year-old mammal teeth and polymers that mimic insect prey, scientists at the University of Massachusetts Amherst this week provide the first laboratory-tested ...
The retroviruses which gave rise to HIV have been battling it out with mammal immune systems since mammals first evolved around 100 million years ago – about 85 million years earlier than previously t...
Carbon payments help protect threatened tropical mammals
Carbon payments threatened tropical mammals REDD
2009/6/8
The University of Queensland has found paying to preserve carbon stored in forests could protect endangered wildlife such as Indonesia's orangutans. Based on prices now being paid for carbon dioxide (...