Red-backed Hawk (Variable hawk), Los Glaciares National Park, Santa Cruz Province, Patagonia, Argentina, South America

Red-backed Hawk (Variable hawk) in flight, Los Glaciares National Park, Santa Cruz Province, Patagonia, Argentina, South America

Variable oystercatcher (Haematopus unicolor), Coromandel Penninsula, North Island, New Zealand, Pacific

Variable fangblenny (Petroscirtes variablilis), Sulawesi, Indonesia, Southeast Asia, Asia

Variable fangblenny (Petroscirtes variablilis), Sulawesi, Indonesia, Southeast Asia, Asia

Reef with variable Gorgonians (Paramuricea clavata), Cap de Creus, Costa Brava, Spain, Mediterranean, Europe

Reef with variable Gorgonians (Paramuricea clavata), Cap de Creus, Costa Brava, Spain, Mediterranean, Europe

Thorny seahorse, Hippocampus hystrix. Variable in color, this species is often found in sandy, rubble bottoms clinging to sponges or bits of coral. Lembeh Strait, North Sulawesi, Indonesia, Pacific Ocean.

Giant frogfish, Antennarius commersoni. This large species is not only highly variable in color, matching its surroundings, but is also widespread through the Pacific and Indian oceans. Lembeh Strait, North Sulawesi, Indonesia, Pacific Ocean.

Variable Thorny Oyster (Spondylus varians), open and feeding showing multi-coloured mantle, Sipadan, Malaysia

Painted frogfish, Antennarius pictus. Highly variable in color, this species often grows scab-like patches on its body for camouflage. Lembeh Strait, North Sulawesi, Indonesia, Pacific Ocean.

A pair of Variable Nudibranchs(Aphelodoris luctuosa). Poor Knights Island, New Zealand

Variable Thorny Oyster (Spondylus varians), open and feeding showing multi-coloured mantle, Sipadan, Malaysia

This is the nebula rich region in the constellation of Monoceros the Unicorn with the dark Cone Nebula (left of centre) and the small V-shaped and bright Hubble's Variable Nebula at bottom, a reflection nebula that varies in form and brightness. Above the Cone Nebula is the triangular Christmas Tree Cluster, NGC 2264, here upside down as the bright blue star 15 Mon is the base of the tree. The large region of nebulosity is Sharpless 2-273. The V-shaped dark nebula above centre is LDN 1603.

The Tachinidae are a large and variable family of true flies within the insect order Diptera, with more than 8,200 known species and many more to be discovered. Most are protelean parasitoids, or occasionally parasites, of arthropods.

Variable Star FU Orionis (2016)

Variable Star FU Orionis

Variable Burnet Moth (Zygaena ephialtes), Lake Lutten, Mittenwald, Bavaria, Germany, Europe

Red Anthias and Variable Gorgonians, Anthias anthias, Paramuricea clavata, Carall Bernat, Medes Islands, Costa Brava, Mediterranean Sea, Spain

Scuba Diver and Variable Gorgonians, Paramuricea clavata, Tamariu, Costa Brava, Mediterranean Sea, Spain

Scuba Diver and Variable Gorgonians, Paramuricea clavata, Tamariu, Costa Brava, Mediterranean Sea, Spain

Variable Blenny, Parablennius pilicornis, Tamariu, Costa Brava, Mediterranean Sea, Spain

Scuba Diver and Variable Gorgonians, Paramuricea clavata, Tamariu, Costa Brava, Mediterranean Sea, Spain

Variable Blenny, Parablennius pilicornis, Tamariu, Costa Brava, Mediterranean Sea, Spain

Scuba Diver and Variable Gorgonians, Paramuricea clavata, Tamariu, Costa Brava, Mediterranean Sea, Spain

Scuba Diver and Variable Gorgonians, Paramuricea clavata, Tamariu, Costa Brava, Mediterranean Sea, Spain

Scuba Diver and Variable Gorgonians, Paramuricea clavata, Tamariu, Costa Brava, Mediterranean Sea, Spain

Scuba Diver and Variable Gorgonians, Paramuricea clavata, Tamariu, Costa Brava, Mediterranean Sea, Spain

Scuba Diver and Variable Gorgonians, Paramuricea clavata, Tamariu, Costa Brava, Mediterranean Sea, Spain

Scuba Diver and Variable Gorgonians, Paramuricea clavata, Tamariu, Costa Brava, Mediterranean Sea, Spain

Scuba Diver and Variable Gorgonians, Paramuricea clavata, Tamariu, Costa Brava, Mediterranean Sea, Spain

Scuba Diver and Variable Gorgonians, Paramuricea clavata, Tamariu, Costa Brava, Mediterranean Sea, Spain

Variable Blenny, Parablennius pilicornis, Tamariu, Costa Brava, Mediterranean Sea, Spain

Variable Gorgonians, Paramuricea clavata, Tamariu, Costa Brava, Mediterranean Sea, Spain

Scuba Diver and Variable Gorgonians, Paramuricea clavata, Tamariu, Costa Brava, Mediterranean Sea, Spain

Reef with Variable Gorgonians, Paramuricea clavata, Tamariu, Costa Brava, Mediterranean Sea, Spain

Variable thorny oyster (Spondylus varius) in the half-light of a cavity teeming with glassfish. Mayotte

Harvest quince 'Bourgeaud' (or Bourgeault) in a wheelbarrow. Quince 'Bourgeault': Old variety, smaller than the classic 'Monstrous Vranja', but more fragrant. Spelling of the variable name.

Variable sea hare, Poor Knights Reserve New Zealand

Variable Smudge (Ypsolopha ustella) Imago at the end of wintering, wooded areas of oaks, Côtes d'Armor, Brittany, France