Gerry Ellis / Rough-skinned Newt (Taricha granulosa) portrait, Siskiyou National Forest, Oregon

Eduardo Blanco / Pale burrower mayfly (Ephoron virgo) swarming around streetlights at night, with gecko (Tarentola mauritanica) inside lamp. Mayflies recently hatched. Tudela, La Ribera de Navarra, Navarre, Spain. Aug...

Nick Upton / Two Great crested newt (Triturus cristatus) males courting a female, with one arching his back and waving his tail as the other grasps her in a garden pond at night, near Wells, Somerset, UK, March. P...

Nick Upton / Great crested newt (Triturus cristatus) courting males in a garden pond at night, displaying with arched backs and raised crests to attract females, near Wells, Somerset, UK, March. Photographed under...

Nick Upton / Great crested newt (Triturus cristatus) male in a garden pond at night, head-on view, Somerset, UK, March. Photographed under license.

Nick Upton / Great crested newt (Triturus cristatus) female swimming in a garden pond at night, Somerset, UK, March. Photographed under license.

Nick Upton / Great crested newt (Triturus cristatus) male courting a female by arching his back and waving his tail in a garden pond at night, surrounded by Water fleas (Daphnia pulex), near Wells, Somerset, UK, M...

Nick Upton / Great crested newt (Triturus cristatus) male in a garden pond at night, surrounded by Water fleas (Daphnia pulex), Mendip Hills, near Wells, Somerset, UK, March. Photographed under license.

Nick Upton / Two male Palmate newts (Lissotriton helveticus) swimming in a garden pond at night surrounded by Water fleas (Daphnia pulex), near Wells, Somerset, UK, March.

Nick Upton / Palmate newt (Lissotriton helveticus) male in a garden pond at night with webbed hind feet spread wide, surrounded by Water fleas (Daphnia pulex), near Wells, Somerset, UK, March.

Nick Upton / Female Palmate newt (Lissotriton helveticus) emerging from a dew pond renovated by the Mendip Ponds Project to forage on land after dark, near Cheddar, Somerset, UK, March.

Nick Upton / Palmate newt (Lissotriton helveticus) female, emerging from a dew pond renovated by the Mendip Ponds Project to forage on land after dark, near Cheddar, Somerset, UK, March.