Adorable odd couple: 

Chimp's maternal instincts awakened as she feeds milk to a baby tiger

They are humans' closest relative, sharing a similar genetic make-up and displaying behaviour not unlike our own. 

Now this little chimpanzee is showing off a motherly instinct to rival even the most maternal of mankind.

These adorable images reveal the close bond that has formed between a two-year-old chimpanzee called Do Do and a two-month-old tiger cub called Aorn.

Scroll down to see a video of the chimp and tiger cub playing together

Maternal instinct: A two-year-old chimpanzee called Do Do feeds milk to Aorn, a two-month-old tiger cub

Completely at ease in each other's company, the ape's motherly instincts take over as she attentively bottle feeds the baby tiger.

Aorn gratefully laps up the milk as Do Do tenderly holds the tiger in her arms.

At one point, Do Do puts the bottle in her own mouth - almost mimicking the actions of a human mother checking to see if the milk is suitable for her offspring to consume.

For some unexplained reason Do Do is wearing a pair of denim shorts - perhaps to protect her thighs from Aorn's claws.

They were photographed at Samut Prakan Crocodile Farm and Zoo on the outskirts of Bangkok, Thailand.