Alex Mustard / Rhinoceros triplefin (Helcogramma rhinoceros) male displaying his dark mating colours and lifts his extended snout to impress a more drably coloured female as she lays eggs in their nest. Seraya, Tulamben, Bali, Indonesia. Java Sea.

Chadden Hunter / Cameraman Jeff Turner and Producer Chadden Hunter exposed at -40 degrees in Arctic circle in Northern Canada while filming wolves and bison hunting sequence. Taken on location for BBC Frozen Planet se...

Jeff Turner / Grey wolf white Arctic form wild (Canis lupus) pup begging for food from mother. Ellesmere

Jeff Turner / Grey wolf (arctic form) with pup near den, Ellesmere Island, Canada

Jeff Turner / Wood bison (Bison bison athabascae) entering water, Wood Buffalo NP, Alberta, Canada

Jeff Turner / Grey wolf (Canis lupus) white arctic race, pups begging for food, Ellesmere Island, Canada

Jeff Turner / Wood bison (Bison bison athabascae) calf suckling, Wood buffalo NP, Canada

Jeff Turner / Cameraman Jeff Turner on lookout for wolves, Wood Buffalo NP, Canada, 1996

Jeff Turner / Grey wolf {Canis lupus} yearling (White Arctic race) Ellesmere Island, Canada

Jeff Turner / Grey wolf {Canis lupus} (white arctic race) mother with pup begging for food, Ellesmere Island, Canada

Jeff Turner / Wild Arctic grey wolf {Canis lupus} face portrait, Ellesmere Island, Canada

Jeff Turner / Grey / White arctic race wolf yearlings {Canis lupus} Ellesmere Island, Canada.

Jeff Turner / Two wild pups of Arctic white form of Grey wolf (Canis lupus) Ellesmere Island, Canada