Alex Mustard / Two Atlantic spotted dolphins (Stenella frontalis) over a shallow sand bank. On the left is a juvenile which does not have the characteristic spots of the adults. The adult is carrying a piece of weed...

Andrew Walmsley / Mini lop-eared domestic rabbit with one ear up and one ear down, and tongue sticking out, Captive, Christchurch, New Zealand

Andrew Walmsley / Eurasian Coot (Fulica atra) on water, Christchurch, New Zealand, February

David Shale / Enteropneust worm / Acorn worm (tergivelum cinnabarinum) from the North Atlantic Ocean, Northern Pink variety, Feeds on sea floor sediment leaving behind characteristic spiral traces, depth approx 27...

David Shale / Enteropneust worm / Acorn worm (Tergivelum cinnabarinum) from the North Atlantic Ocean, Northern Pink variety, Feeds on sea floor sediment leaving behind characteristic spiral traces, depth approx 27...

Doug Perrine / Atlantic spotted dolphin bubbles coming from blowhole whilst it whistles {Stenella (Non-ex).

Phil Savoie / Painted nomad bee (Nomada fucata) male with characteristic green eyes, feeding on Dandelion (Taraxacum offinicale) Monmouthshire, Wales, UK. April

Phil Savoie / Painted nomad bee (Nomada fucata) male with characteristic green eyes, sleeping with jaws locked onto grass blade, Monmouthshire, Wales, UK. April

Sergio Hanquet / Short-finned pilot whale (Globicephala macrorhynchus) calf with fetal lines characteristic of newborn specimens, with pod. Tenerife, Canary Islands.

Phil Savoie / Painted nomad bee (Nomada fucata) feeding on Dandelion (Taraxacum officinale) male animal with characteristic green eyes, Monmouthshire, Wales, UK. April.

David Perpinan / Radiography of a Spider tortoise (Pyxis arachnoides) showing a characteristic of this species - they just lay one egg. Captive. Small repro only.

Graham Eaton / Clints (blocks) and Grykes (gaps) of limestone pavement. This is Carboniferous age limestone, part of a large area of Karst above Austwick, Yorkshire, UK. Slightly acidic rainfall, erodes and enlarges...