Keyhole garden in Lesotho by Send a Cow, who first popularized keyhole gardens in Africa. Send a Cow has helped countless families and schools build keyhole gardens.
Twilight Grooming - Keith Connelly
A young male Leopard Grooms in the twilight blue after feeding off an Impala kill. Timbavati Game Reserve, South Africa.
Barn Owls Nestlings - Fabrizio Sergio
Barn owl nestlings recognise their siblings’ calls, according to researchers.
Instead of competing aggressively for food, young barn owls are known to negotiate by calling out.
A team of scientists in Switzerland discovered that the owlets have remarkably individual calls.
They suggest this is to communicate each bird’s needs and identity in the nest.
The findings were announced in the Journal of Evolutionary Biology by Dr. Amelie Dreiss and colleagues at the University of Lausanne, Switzerland.
Barn owls (Tyto alba) are considered one of the most widespread species of bird and are found on every continent except Antarctica.
An average clutch size ranges between four and six eggs but some have been known to contain up to 12.
Previous studies have highlighted how barn owl nestlings, known as owlets, negotiate with their siblings for food instead of fighting.
While their parents search for food the owlets advertise their hunger to their brothers and sisters by calling out.
"These vocal signals deter siblings from vocalizing and from competing for the prey at parental return," explained Dr Dreiss.
"If there is a disagreement, they can escalate signal intensity little by little, always without physical aggression, until less hungry siblings finally withdraw from the contest."