How cars, pollution and suburbia threaten rattlesnakes

Just like the hordes of mountain bikers, hikers and trail runners that migrate from their comfortable couches to more open spaces in spring, western rattlesnakes are also on the move, emerging from deep winter dens to their ...

Australian fur seal pup population is shrinking

A census of annual pup production by Australian fur seal populations revealed the first reduction since species-wide protection was implemented in 1975, according to a study published September 5 in the open-access journal ...

New population data provide insight on aging, migration

The European Demographic Datasheet 2016, produced by demographers at the International Institute for Applied Systems Analysis (IIASA) and the Vienna Institute of Demography, provides a comprehensive look at key demographic ...

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