Scientists estimate that a third or more of all the roughly 6,300 known species of amphibians are at risk of extinction [6]. Frogs, toads, and salamanders are disappearing because of habitat loss, ...

When there are no individuals of a species left alive, we say that it is extinct. Extinction is permanent; when an organism disappears, it’s gone forever. Lots of species have come and gone ...

In the US, the number of honey-bee colonies dropped from 6 million in 1947 to 2.5 million ... Nature), and 10% are going locally extinct. That extinction rate is eight times faster than the ...