Samay | UP/Uttarakhand | MP/Chattisgarh | Bihar/Jharkhand | Rajasthan | Aalami Samay

Dogs can be pessimists too!

Dogs are not always playful, can be pessimists too!

"A pessimistic dog that avoids risks would be better as a guide dog while an optimistic, persistent dog would be more suited to detecting drugs or explosives," she said. The research is published in the journal PLOS One.