Nepal-Tibet floods: 390 dead, 1,400 missing

Rescue teams search for 1,400 missing after a glacier collapse triggered flash floods in Nepal and Tibet, killing over 390 people, with warnings of further flooding from debris-clogged rivers.

Hornet mimic hoverfly: harmless fly's clever disguise

The hornet mimic hoverfly (Volucella zonaria), a 2cm harmless fly, uses Batesian mimicry to deter predators. It arrived in Britain in the 1940s, expanding its range due to hotter summers, and now coexists with three hornet species.

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