Hippo 'French kiss'

The two "hippopotamus" hippos in the zoo in Poland are one of the most impressive animals in the week.

Two hippos play together in the zoo in Warsaw, Poland.(Photo: EPA)

A blind orangutan lying with two children in Sibolangit city, Sumatra island, Indonesia.
Two young orangutans are not blind as their mothers.(Photo: PA)

A two-week-old penguin leans against a stuffed animal in Cincinnati zoo, USA.
(Photo: AP)

Kingfisher makes a perfect catch in the UK.(Photo: SOLENT)

Panda climbing tree in Hanzhong city, Shaanxi province, China.(Photo: Rex Features)

Two wild horses step in the snow in Mongolia.

A macaque monkey bathed in hot springs at Jigokudani zoo, city
Yamanouchi, Japan.This is a zoo dedicated to monkeys.(Photo: AP)

A dog confronts a fox in Lisiki, Russia.(Photo: CATERS)

The gorilla stepped with its hind legs like a zoo man
Port Lympne, Kent county, England.(Photo: Kevin Jenner)

A giraffe in the Prague zoo, Czech Republic.

Two elephant seals play fighting games on the British island of South Georgia.(Photo: Barcroft)