Homeland chemical security

The slow implementation of the Chemical Facility Anti-Terrorism Standards (CFATS) in the USA as part of homeland security and anti-terrorism measures is leaving chemical plants vulnerable and putting at risk the safety of ...

A beggars banquet—life in a shared nest

It's not all bad for crow chicks who have to share their nest with an uninvited pushy guest such as a cuckoo youngster. For one, they can sit back and wait for food to arrive while the cuckoo chick does all the begging for ...

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