Hans Christoph Kappel / Northern bat roosting, Germany (Eptesicus nilssoni)

Naskrecki & Guyton / Rendall's serotine bats (Neoromicia rendalli) drinking from pool in flight, Gorongosa National Park, Mozambique

Naskrecki & Guyton / Rendall's serotine bats (Neoromicia rendalli) drinking from a pond in flight, Gorongosa National Park, Mozambique.

Naskrecki & Guyton / Rendall's serotine bats (Neoromicia rendalli) drinking from a pond in flight, Gorongosa National Park, Mozambique.

Naskrecki & Guyton / Zulu serotine bat (Neoromicia zuluensis) in flight, Codzo Caves, Mazamba, Sofala, Mozambique. Controlled conditions

Piotr Naskrecki / Zulu serotine bat (Neoromicia zuluensis) in flight, Codzo Caves, Mazamba, Sofala, Mozambique. Controlled conditions

Adrian Davies / Serotine bat (Eptesicus serotinus), detail of fifth finger on outstretched wing. Captive, injured animal. UK. May.

Adrian Davies / Serotine bat (Eptesicus serotinus) on tree. Captive, injured animal in rehabilitation UK. May.

Naskrecki & Guyton / Rendall's serotine bats (Neoromicia rendalli) drinking from pool in flight, Gorongosa National Park, Mozambique.

Dietmar Nill / Particoloured bat (Vespertilio murinus) in flight, Germany, captive.

Dietmar Nill / Serotine bat (Eptesicus serotinus) flying, Germany, captive.

Ann & Steve Toon / Cape serotine (Neoromicia capensis) bat, Kgalagadi transfrontier park, South Africa, June