Rats giggle when you tickle them. Their voices are so high-pitched you need special equipment to hear them, but when you do, their laughs are immediately evident.

Image from preview.redd.it and submitted by IloveRamen99
image showing Rats giggle when you tickle them. Their voices are so high-pitched you need special equipment to hear them, but when you do, their laughs are immediately evident.

IloveRamen99 on June 18th, 2020 at 17:02 UTC »

Source

the_retrosaur on June 18th, 2020 at 17:57 UTC »

Some rats get given cancer, other rats get tickled. Science, amirite

whatthefbomb on June 18th, 2020 at 18:01 UTC »

Maybe not the best picture for this tidbit.