23 February 2012 Last updated at 09:55

Wetland crisis The battle to protect the Mediterranean's ailing wetlands Souss

A taste the abyss Taking a prototype, deep-diving submarine for a test dive. Triton submersible Watch

Flower power Which garden plants attract the most pollinating insects? Bumblebee on a dahlia (c) LASI

Super-predators Why have animals not evolved defences against humans? Man fishing underwater (copyright: Timothy Allen / BBC)

Love gifts The weird array of presents that animals give to potential mates. Red-crowned crane (c) photolibrary.com

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Video collections

“Loads of wild garlic in the glens on the Isle of Man. Not too whiffy yet though as just the leaves sprouting! Love the stuff. ”

Maria Dimsdale shares a sighting of wild garlic with the BBC Nature Facebook group

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