Related topics: sharks

Power struggles are best kept out of the public eye

For animals, prevailing in a fight affects their likelihood of winning future conflicts. The opposite is true of losing a fight. The sex hormone testosterone is often believed to mediate this "winner effect". Researchers ...

World biology team returns with haul of Papuan species

An international consortium of scientists said on Wednesday they had collected 1.5 million specimens of wildlife in an unprecedented mission to document the biological treasures of Papua New Guinea.

Big nations block curbs on tuna overfishing

Efforts to curb overfishing of tuna in the Pacific were blocked by big countries that refused to cut their catch at a meeting of tuna-fishing nations in the Asia-Pacific, delegates said Thursday.

Atlantic bluefin tuna quota to rise slightly

Annual catches of Atlantic bluefin tuna will rise slightly from next year, green groups said Monday at a meeting of countries that hunt the much-prized but threatened species.

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