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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...
MONITORING SEABIRDS AND MARINE MAMMALS BY GEOREFERENCED AERIAL PHOTOGRAPHY
Biological Monitoring Digital Surveys Environmental Impact Assessment Marine Wildlife Offshore Wind
2016/11/30
The assessment of anthropogenic impacts on the marine environment is challenged by the accessibility, accuracy and validity of biogeographical information. Offshore wind farm projects require large-sc...
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 ...
Protein Evolution in Different Cellular Environments: Cytochrome b in Sharks and Mammals’
Cellular Environment Sharks and Mammals’
2015/12/17
DNA sequences for the mitochondrial cytochrome b gene were determined for 13
species of sharks. Rates and patterns of amino acid replacement are compared for
sharks and mammals. Absolute rates of ...
Thermal dependence of cardiac SR Ca2t-ATPase from fish and mammals
SERCA2 Cardiac myocytes Cold adaptation Endothermic fish Ventricles
2015/11/16
The thermal sensitivity of metabolic performance in vertebrates requires a better understanding of the temperature sensitivity of cardiac function. The cardiac sarco/endoplasmic reticulum Ca2t-ATPase ...
The Secret Life of Marine Mammals: Novel Tools for Studying Their Behavior and Biology at Sea
Marine Mammals Behavior and Biology
2015/8/19
Given the interest by both the lay and scientific communities, it is surprising how little is known about the open ocean ecology of marine mammals. Their patchy distribution and low abundance leads to...
Marine Mammals as Sentinel Species for Oceans and Human Health
Marine Mammals Sentinel Species Oceans and Human Health
2015/7/23
As more humans inhabit coastal regions, a global "anxiety" is developing about the health of our aquatic ecosystems. This anxiety is particularly prevalent in the United States, where more than half t...
Over the last 50 years, international public concern regarding human impact on the environment has increased drastically. Specific to the maritime domain, attention has more acutely focused during the...
Simple, selective, and sensitive measurement of urea in body fluids of mammals by reversed-phase ultra-fast liquid chromatography
urea derivatization liquid chromatography
2015/6/23
The presented
chromatographic procedure is especially suitable for preparation of reference sample sets, very accurate and
precise research purposes or rapid clinical diagnostic with smaller sampl...
Infl uence of forest fragmentation on the distribution of small terrestrial mammals in fi r-beech commercial forest
Apodemus flavicollis Clethrionomys glareolus
2015/5/5
Differences in abundance and spatial distribution of small terrestrial mammals were compared between
the forest interior and clearing. In total, seven micromammalian species were detected. Of them, ...