Life & Evolution

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fruit fly and sperm

EXTREME SPERM  The most oversized male sexual feature yet documented may be a fruit fly’s giant sperm (right, one sperm at 200 times magnification from Drosophila bifurca; left, same magnification of male surrounded by a male reproductive tract).

cows in a field in Finland

Dosing cattle with antibiotics affects dung beetles and ups greenhouse gases emitted from cow dung, researchers suggest.

a dolphin underwater

Dolphins produce clicking noises to echolocate prey thanks to lumps of mucus-covered tissue in their nasal passage, new models suggest. 

Life & Evolution

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