Purring animals often appear confident and fearless. But in reality, they can be shy and fearful of their surroundings. There are several reasons for...
Dolphins have a cortex (cerebral cortex, gray matter) more developed than humans.
They have self-awareness, complex thought streams, and give themselves unique personal names.
Dolphins rescue...
Women's tears contain chemicals that block male aggression, a study by Israeli scientists found, cited by the electronic edition "Euricalert".
Specialists from the Weizmann Institute...