Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) resting among Red soft coral (Eunephthya rubiformis), Browning Pass, Vancouver Island, British Columbia, Canada, Queen Charlotte Strait, Pacific Ocean.

Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) portrait, Browning Pass, Vancouver Island, British Columbia, Canada, Queen Charlotte Strait, Pacific Ocean.

Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) portrait, Browning Pass, Vancouver Island, British Columbia, Canada, Queen Charlotte Strait, Pacific Ocean.

Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) camouflaged on reef with White short plumose anemones (Metridium senile), Browning Pass, Vancouver Island, British Columbia, Canada, Queen Charlotte Strait...

Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) camouflaged amongst Red soft coral (Eunephthya rubiformis) and Yellow encrusting sponges (Myxilla lacunosa) with White plumose anemones (Metridium senile)...

Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) resting amongst Red soft coral (Eunephthya rubiformis) and Yellow encrusting sponges (Myxilla lacunosa), Browning Pass, Vancouver Island, British Columbia,...

Joel Sartore / Photo Ark / White bullhead (Ameiurus catus) portrait, Fish Conservation and Culture Lab. Captive, occurs in USA.

Joel Sartore / Photo Ark / Yellow bullhead (Ameiurus natalis) portrait, Albuquerque BioPark Aquarium. Captive, occurs in USA.

Joel Sartore / Photo Ark / Yellow bullhead (Ameiurus natalis) head portrait, Albuquerque BioPark Aquarium. Captive, occurs in USA.

Joel Sartore / Photo Ark / Yellow bullhead (Ameiurus natalis) portrait, Albuquerque BioPark Aquarium. Captive, occurs in USA.

Ann & Steve Toon / Female Cheetah (Acinonyx jubatus) with two juveniles, sitting among Devil's thorn (Tribulus terrestris) wildlfowers, Kgalagadi Transfrontier Park, Northern Cape, South Africa.

Ann & Steve Toon / Female Cheetah (Acinonyx jubatus) lying down among Devil's thorn (Tribulus terrestris) flowers, Kgalagadi Transfrontier Park, Northern Cape, South Africa.

Shane Gross / Eyes of Red Irish lord (Hemilepidotus hemilepidotus) in Browning Pass, Vancouver Island, British Columbia, Canada. North East Pacific Ocean. July.

SCOTLAND: The Big Picture / European otter (Lutra lutra) eating Scorpion fish (Taurulus bubalis), Isle of Mull, Scotland, UK. September.

Henley Spiers / European bullhead (Cottus gobio) portrait, River Otter, Devon, England, UK.

Shane Gross / Red Irish lord (Hemilepidotus hemilepidotus) close up detail of the pectoral fin, Browning Pass, Queen Charlotte Strait, Vancouver Island, British Columbia, Canada.

Shane Gross / Close-up detail of the eye of a Red Irish lord fish (Hemilepidotus hemilepidotus) showing distinctive corneal chromatophores (pigment-containing structures). Browning Pass, Vancouver Island, British C...

Alex Mustard / Portrait of a Long-spined sea scorpionfish (Taurulus bubalis) in a bed of common brittlestars (Ophiothrix fragilis).Fort William, Lochaber, The Highlands, Scotland, United Kingdom. Loch Linnhe, North...

Shane Gross / Red Irish lord (Hemilepidotus hemilepidotus) rests on a kelp frond off Vancouver Island, British Columbia, Canada.

Emanuele Biggi / Bullhead (Cottus gobio) adult fish underwater in small alpine stream, Italy, July.

Emanuele Biggi / Bullhead (Cottus gobio) adult fish underwater in small alpine stream, Italy, July.

Brian Bevan / Bullhead millers thumb (Cottus gobio) resting amongst stones, Befordshire, UK, November. Controlled conditions.

Alex Mustard / Long-spined sea scorpion (Taurulus bubalis) hides amongst white plumose anemones (Metridium dianthus) on the Wreck of the Rosalie. Weybourne, north Norfolk, England, United Kingdom. North Sea.

Alex Mustard / Eye detail of a long-spined sea scorpion (Taurulus bubalis). Lochcarron, Ross-shire, Ross and Cromarty, Highlands, Scotland, United Kingdom. Loch Carron, North East Atlantic Ocean.

David Hall / Red Irish lord sculpin (Hemilepidotus hemilepidotus) camouflaged amongst Plumose anemones (Metridium senile), red soft coral (Gersemia rubiformis), various sponges, bryozoans and calcareous tubeworms....

David Hall / Red Irish lord fish (Hemilepidotus hemilepidotus) among Sulfur Sponge (Myxilla lacunosa) Browning Pass, Queen Charlotte Strait, British Columbia, Canada. May.

David Hall / Red Irish lord fish (Hemilepidotus hemilepidotus) with Pygmy rock crab (Cancer oregonensis). Seven-Tree Island, Browning Pass, British Columbia. September.

David Hall / Red Irish lord fish (Hemilepidotus hemilepidotus) with Plumose anemones (Metridium senile) Seven-tree Island, Browning Pass, Queen Charlotte Strait, British Columbia, Canada. May.