Getty Images
Pair of Clark's anemone fish (Amphiprion clarkii) spawning. First the larger female deposits her eggs, then the male fertilizes them. When the spawning has ceased the anemone will expand and conceal the eggs
Pair of Clark's anemone fish (Amphiprion clarkii) spawning. First the larger female deposits her eggs, then the male fertilizes them. When the spawning has ceased the anemone will expand and conceal the eggs
Getty Images
Red mouth triggerfish (Odonus niger) group, guarding and ventilating their nests, which are buried in black volcanic sand. Triggerfish have the fastest developing eggs. Spawning occurs at dawn and by dusk the eggs are ready to disperse
Red mouth triggerfish (Odonus niger) group, guarding and ventilating their nests, which are buried in black volcanic sand. Triggerfish have the fastest developing eggs. Spawning occurs at dawn and by dusk the eggs are ready to disperse
Getty Images
Red mouth triggerfish (Odonus niger) group, guarding and ventilating their nests, which are buried in black volcanic sand. Triggerfish have the fastest developing eggs. Spawning occurs at dawn and by dusk the eggs are ready to disperse
Red mouth triggerfish (Odonus niger) group, guarding and ventilating their nests, which are buried in black volcanic sand. Triggerfish have the fastest developing eggs. Spawning occurs at dawn and by dusk the eggs are ready to disperse
Getty Images
Male foetus moving in the womb. This foetus is at full term, and is ready to be born
Male foetus moving in the womb. This foetus is at full term, and is ready to be born
Getty Images
MS Pair of Bicolour parrotfish swimming together during courtship, Malaysia
MS Pair of Bicolour parrotfish swimming together during courtship, Malaysia
Getty Images
Sea slug, H.bullocki, two mating, Kapalai, Sipadan, Borneo, Malaysia
Sea slug, H.bullocki, two mating, Kapalai, Sipadan, Borneo, Malaysia
Getty Images
BCU Male's face of common frogs (Rana temporaria) mating
BCU Male's face of common frogs (Rana temporaria) mating
Getty Images
Sea slug, H.bullocki, 2 mating, pull back yellow eggs, Derawan, Celebes Sea, Malaysia
Sea slug, H.bullocki, 2 mating, pull back yellow eggs, Derawan, Celebes Sea, Malaysia
Getty Images
High Speed - BCU Mesembryanthemum Seed head opening, South Africa
High Speed - BCU Mesembryanthemum Seed head opening, South Africa
Getty Images
CU pair of European frogs, Rana temporaria, mating in water, United Kingdom
CU pair of European frogs, Rana temporaria, mating in water, United Kingdom
Getty Images
Nursery Web Spiders (Pisaura) MS mating, female holding on to food, England
Nursery Web Spiders (Pisaura) MS mating, female holding on to food, England
Getty Images
Time lapse Ladybird Beetle Eggs (Coccinella 7-punctata) Eggs hatching, England
Time lapse Ladybird Beetle Eggs (Coccinella 7-punctata) Eggs hatching, England
Getty Images
MCU Underwater view of Common Frogs (Rana temporaria) mating, England
MCU Underwater view of Common Frogs (Rana temporaria) mating, England
Getty Images
CU White-eye bird struggling to feed from Strelitzia
CU White-eye bird struggling to feed from Strelitzia
Getty Images
BCU Mouse drinking nectar from protea, getting pollen on nose
BCU Mouse drinking nectar from protea, getting pollen on nose
Getty Images
CU Common frog (Rana temporaria), pan to frogs mating
CU Common frog (Rana temporaria), pan to frogs mating
Getty Images
BCU Tongue of Australian Honey possum, Tarsipes spenserae, drinking nectar from Eucalyptus torquata (Coral Gum), Tilt up to head
BCU Tongue of Australian Honey possum, Tarsipes spenserae, drinking nectar from Eucalyptus torquata (Coral Gum), Tilt up to head
Getty Images
BCU Pair of Ladybird beetles mating away from camera, England
BCU Pair of Ladybird beetles mating away from camera, England
Getty Images
BCU abdomens of mating Ladybird beetles, United Kingdom
BCU abdomens of mating Ladybird beetles, United Kingdom