Dolphins 'smile' at their playmates

Emperor penguin makes record-breaking swim from Antarctica to Australia

Dolphin teaches tail-walking trick to other dolphins in the wild

Dolphins 'smile' at each other during play, research shows

Watch: Bottlenose dolphins ‘smile’ at each other while playing

Study Finds Dolphins ‘Smile’ to Initiate Play Similar to Humans and They’re Infectious

Dolphin Show In Lahore | Crazy Dolphin Dance | First Time Ever In Pakistan

Scuba Diving Encounters: Tahiti's Friendliest Dolphin

Dog Named Finn Speaks Dolphin

Dolphins Play With Beachgoers in Matarangi, New Zealand

Dolphins bond by whistling to one another and rely on wingmen for mating

Motorcyclist halts traffic to rescue kitten stranded on busy road

Sleeping shop worker startled awake by bear inches from his face

"I spent $2k on the Hallmark Christmas cruise - it was money well spent"

Jin: Running Wild | The Tonight Show Starring Jimmy Fallon

Ylli Baka & Parodistet e Vlores & Artur Dhamo - Larte e poshte ne skele (Official Video 4K)

Maya & Fatmira Brecani - Kenga jone (Official Video 4K)

Ani Myzeqarja - Gezuar Vitin e Ri (Official Video HD)

Weight loss and diabetes drugs reduce kidney deterioration and failure risks

Big panther-like cat 'spotted' in North Yorkshire

NASA probes 'spiderwebs' found on Mars

Fish get stressed due to social anxiety

Big cat thought to be on the prowl in the Cotswolds after mauled dear is found

Particular hair wash may cause 'full-blown' stroke

Derren Brown used a mind trick to enjoy salami

A banana duct-taped to a wall has sold for 6.2 million dollars