Rats don’t always have the best reputations, but a rat called Ronin with a super sense of smell is working to change that.

Pet rats are super intelligent and social animals that really thrive when you give them plenty of mental stimulation and opportunities to explore their surroundings. Keeping your rat entertained ...

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Ronin, who is 5 years old and was born in Tanzania, is much larger than your average pet rat. He is more than 2 feet long – about the length of a cat – and weighs 2.6 pounds, according to APOPO.