Research shows oceanic shark populations have dropped 71% since 1970
Globally, the abundance of oceanic sharks and rays dropped more than 70 per cent between 1970 and 2018, according to a study published Wednesday in the journal Nature. Of the 31 species of sharks and rays, 24 are threatened with extinction.
from CBC | Technology News https://ift.tt/2MyGz36
Research shows oceanic shark populations have dropped 71% since 1970
Reviewed by mr anox
on
11:04
Rating:
Aucun commentaire: