When cats are happy, they may squeeze their eyes shut.
10
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
A group of kittens is called a "kindle".
10
Kissing releases masses of oxytocin, a "love potion" that helps couples bond and feel more attracted to each other.
13
A puppy is born blind, deaf, and toothless.
16
The desire to squeeze and hug cute things comes from the same place in your brain as aggression.
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