Nick Garbutt / Feather pattern from neck region of Vulturine Guinea Fowl (Acryllium vulturinum). Captive, from dry regions of East Africa, eg. Samburu, Kenya.

Pete Oxford / Kicker Rock / León Dormido said to resemble a sleeping lion. It is an eroded tuff cone whose sheer-sided cliffs are frequented by seabirds eg boobies, frigates and tropic birds.

Constantinos Petrinos / Mimic octopus impersonating a flat fish eg Flounder, or moving quickly by jet propulsion back to its burrow with prey? Bali

Constantinos Petrinos / Mimic octopus impersonating a flat fish eg Flounder, or moving by jet propulsion back to its burrow with prey? Bali, Indon

Paul D Stewart / Illustration of Madagascan Pipevine Swallowtail (Pharmacophagus antenor / Batthus philenor, Drury 1773). Strong late 18th Century illustration with contemporary colouring following its discovery. As a...