Alex Mustard / Diver cleaning plastic from a dive site in Lembeh. The group of divers collected three large sacks (much bigger than the small collecting bag pictured) from an area about the size of two tennis courts...

Nick Upton / Male Green fairy longhorn moth (Adela viridella / Adela reaumurella) courts female, vibrating his long antennae as he approaches her on Mock orange leaf (Philadelphus coronarius 'Aureus'). Wiltshire g...

Nick Upton / Male Hoverfly (Eristalis nemorum / interruptus) courts a female by hovering loudly above her as she feeds on an Angelica (Angelica archangelica) flowerhead. Wiltshire, UK, June.

Nick Upton / Male Hoverfly (Eristalis nemorum / interruptus) courts a female by hovering loudly above her as she feeds on an Angelica (Angelica archangelica) flowerhead. Wiltshire, UK, June.

Mark Moffett / Green and Black Poison Dart Frog (Dendrobates auratus) male courts the female by following her closely, touching her behind as they go, Taboga Island, Panama

Premaphotos / Diurnal cricket (Nisitrus sp) male on the left 'singing', with raised wings as he courts the female on the right, in rainforest, Sumatra