Christophe Courteau / Hamadryas Baboon {Papio hamadryas} climbing palm tree in order to feed on nuts. Awash NP, Ethiopia

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years climbing down a tree, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years climbing down a tree, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) sub-adult male 'Kunga' aged 13 years climbing down a tree, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. December 2...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years moving through a tree, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republi...

Anup Shah / Western lowland gorilla (Gorilla gorilla gorilla) dominant male silverback 'Makumba' aged 32 years sitting in a tree, Bai Hokou, Dzanga Sangha Special Dense Forest Reserve, Central African Republic. D...

Mark Hamblin / 2020VISION / Pine marten (Martes martes) juvenile, climbing pine tree in woodland, Beinn Eighe National Nature Reserve, Wester Ross, Scotland, UK, July

George Sanker / Black Bear (Ursus americanus) cub balancing on branch in tree, Yellowstone NP, Wyoming, USA

Rolf Nussbaumer / Northern raccoon (Procyon lotor) young at night climbing live Oak tree (Quercus virginiana) Dinero, Lake Corpus Christi, South Texas, USA.

Dr. Axel Gebauer / Red panda (Ailurus fulgens), climbing down tree, Darjeeling, India, captive

Uri Golman / Asiatic lion cub (Panthera leo persica) looking up into tree, possibly at a bird, Gir Forest NP, Gujarat, India

Andy Rouse / Silhouette of Leopard (Panther pardus) leaping up into a tree, Masai Mara GR, Kenya, February