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Rat
Rats are the smartest of all rodents and are one of those animals who are good at learning and understanding concepts. Just like dogs they are capable of thinking and figuring things out. They are highly social animals who get attached to one another, love their families and share a great bond with humans. A Recent study shows that when rats play or are tickled they tend to make chirping sounds which have a striking similarity to human laughter. Also, they fastidiously clean animals who groom themselves several times in a day. They have a complex system of communication and communicate by touch, smell, and sound.
