Sam Hobson / Common toads (Bufo bufo) in amplexus, Bristol, UK, March.
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Edwin Giesbers / Bearded pig (Sus barbatus) close-up of eye and ear, Bako National Park, Sarawak, Borneo, Malaysia
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John Cancalosi / Colorado river toad (Incilius alvarius) pair mating. Sonoran desert, Arizona, USA. August.
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Alan Williams / Hoverfly (Helophilus trivittatus) pair mating on Ox-eye daisy (Leucanthemum vulgare) flower. Cheshire, England, UK. June.
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Tui De Roy / Nazca booby (Sula granti), pair mating at nest on cliff edge. Gardner Islet, Floreana Island, Galapagos.
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Alex Hyde / Emerald damselflies (Lestes sponsa) mating, with male above. Peak District National Park, Derbyshire, UK. September.
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Luis Quinta / Common dolphins (Delphinus delphis) pair in mating ritual, Atlantic ocean, Portugal, July.
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Andy Rouse / RF- Red deer (Cervus elaphus) stag portrait, during rut, Scotland, UK. (This image may be licensed either as rights managed or royalty free.)
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Rolf Nussbaumer / RF- Western green toad (Bufo debilis) male calling, vocal sac inflated. Chiricahua Mountains, Arizona, USA. (This image may be licensed either as rights managed or royalty free.)
01740106
Emanuele Biggi / White-spotted cochran frog (Sachatamia albomaculata) pair in amplexus whilst sitting on leaf, Panama.
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Guy Edwardes / Ringlet butterfly (Aphantopus hyperantus) pair mating, Powerstock Common DWT reserve, Dorset, UK, July.
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Rod Williams / Black-striped longhornbeetles (Stenurella melanura) mating pair on Ox-eye daisy, Hutchinson's Bank, New Addington, London, England, UK, June
