The new level 4 single story "The Book of Tails" will be released on Monday, April 30.
Why do animals have tails?
Dan and Jan learn all about it from BOT at the natural history museum as BOT explains all about animals' tails.
A screen flashed on.
"I am the Book of Tails, or BOT," said a voice.
"Whoa," said Dan and Jan.
"Choose an animal to learn about its tail," said BOT.
Find out why animals have tails with BOT! Does your favorite animal have a tail?