Valeriy Maleev / Long-eared jerboa (Euchoreutes naso) digging, South Gobi Desert, Mongolia. June. Did you know that the Long-eared jerboa is the mammal with the largest ears in proportion to its body size?

Ingo Arndt / Long eared owl in tree {Asio otus} Hessen Germany

Ralf Kistowski/ BIA / Long-eared Owl (Asio otus), North Rhine-Westphalia, Germany

Bence Mate / Long eared owl (Asio otus) chicks perched on a cross, with the moon, in the background, Puszatszer, Hungary, June.

Patrick Donini / Long-eared Owl (Asio otus), Solothurn, Switzerland

Sven Zacek / Female Long-eared owl (Asio otus) peeking from behind a spruce tree, Southern Estonia, June.

Milan Radisics / Long-eared Owls (Asio otus) roosting in tree, Szeged city, Southern Hungary, February 2009

Bence Mate / Two Long eared owl chicks (Asio otus) perching on tree branch in daylight, Pusztaszer, Kiskunsagi National Park, Hungary

Kim Taylor / Brown Long-eared bat (Plecotus auritus) drinking from a lily pond , Surrey, UK. Overall WINNER of the Audubon Society of Greater Denver Share the View competition 2011

Andy Rouse / Long Eared Owl (Asio otus) UK, controlled conditions, April, Captive

Andy Rouse / Long Eared Owl (Asio otus) perched in low sunlight. Controlled conditions. UK, Europe, May.

Paul Hobson / Long-eared owl (Asio otus) on tree stump, sillhouette in moonlight, captive, Yorkshire, UK