Otters step on the scales at ZSL London Zoo

Penguins to porcupines hit the scales for annual London Zoo weigh-in

Sumatran tiger cubs playing at ZSL London Zoo (c) ZSL London Zoo

London Zoo kicks off the New Year with annual stock take. Credit: ZSL London Zoo

Pride of lions celebrate Pride at ZSL London Zoo Credit: London Zoo

Otter Christmas joy at Whipsnade Zoo (C) ZSL

'Set the A/C to ottermatic': Otters in Oregon Zoo cool as ice amid heatwave

Cute otters break the ice at Twycross zoo

Otters have epic wrestling contest at zoo

Surat Zoo Breeds Otters

Otters Chill Out With Ice Box at Portland Zoo

Oregon Zoo river otters find way to beat the heat

The Secret Life Of The Zoo S02E02 Antisocial Otters

Video Of Rescued Pup Meeting Other Zoo Otters For First Time Is Pure Joy

Northumberland Country Zoo : Otters!

Cockatoo Meets Otters, Peacock During Zoo Tour

WATCH: Otters play keyboard in US zoo

Baby otters from Wildlife World Zoo visit ABC15 Mornings

Asian Small-Clawed Otters Celebrate Enrichment at the Smithsonian's National Zoo (wsRlO4dQJGI)

Oregon Zoo Welcomes Two Adorable Baby Otters

Otters in Oregon Zoo cool as ice amid heatwave