The researchers found incompatibilities between mammals and amphibians in the relation between body size and extinction risk.
The researchers found that the females of smaller amphibians, such as rain frogs (Eleutherodactylus), produce a smaller number of offspring per clutch.
Dogs may have earned the title man s best friend because of how good they are at interacting with people. Those social skills may be present shortly after birth rather than learned, a new study by University of Arizona researchers suggests.
Anyone that s ever interacted with a dog knows that they often have an amazing capacity to interact with people. Now researchers reporting in the journal Current Biology on June 3 have found that this ability is present in dogs from a very young age and doesn t require much, if any, prior experience or training. But, some of them start off better at it than others based on their genetics.
Many organisms in need of conservation are still unknown or lumped in with similar species, which potentially interferes with conservation efforts. In a new study published June 1 in the Open Access journal PLOS Biology, Jane Melville of Museums Victoria, and her colleagues present a new return-on-investment approach to best direct efforts to identify new species before they are lost.