Stress test: New study finds seals are stressed-out by sharks

While a little added stress may be helpful to flee a dangerous situation, or to meet an approaching deadline, it's no secret that prolonged exposure to the stress hormone cortisol is linked to health problems. So, what effects ...

Flower attracts insects by pretending to be a mushroom

The mysterious flowers of Aspidistra elatior are found on the southern Japanese island of Kuroshima. Until recently, scientists thought that A. elatior has the most unusual pollination ecology among all flowering plants, ...

How different ant species coexist in the same territory

In every animal community, several species in the same group often share habitats. An international team including scientists from Catalonia in Spain has created the largest public-access database on the cohabitation ants. ...

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