Warnings that humanity is heading toward its own disappearance have shifted from the fringes of science fiction into mainstream research and public debate. Instead of vague prophecies, scientists now ...
The new research reveals that small population sizes and random birth patterns raise the fertility threshold needed to avoid extinction. (Rafael A.S. Martins/Unsplash via Courthouse News) (CN) — With ...
Most animals reach an adult size, then spend the rest of their lives maintaining it. After maturity, their energy goes toward ...
Polar bears are struggling to survive as sea ice dwindles. Scientists have now quantified how much climate change has drastically reduced the number of polar bears living in Canada's Hudson Bay, the ...
A new study on African penguins links food shortages and fishing to adult survival losses, raising the risk of extinction.