Walrus that attracted crowds in Oslo fjord euthanised

A walrus nicknamed Freya that attracted crowds while basking in the Oslo fjord was euthanised on Sunday, with Norway officials saying it was the only option but experts slamming an "infinitely sad" decision.

Is brain fog limited to humans?

Is brain fog a condition limited to humans? "Infectious disease and cognition in wild populations," a recently published paper in Trends in Ecology & Evolution, answers that question. In a review of the studies, it explores ...

Study reveals 'spiteful' behaviour in bacteria

Bugged by freeloaders? You are not alone, and leeching off others is not just a human problem. In fact, it is not uncommon in the animal kingdom, where even some cheater species of bacteria exhibit such selfish behavior.

Male wolf spiders get luckier following complex courtships

Some male wolf spiders seem to get luckier than others when it comes to courting females. The secret of their courtship? It's complicated, says a new study led by the University of Nebraska–Lincoln.

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