Not very exciting. It was originally named as the "sculptors studio" (Your guess is as good as mine), but was shorted later on. [See Link for pictorial representation]
There is a constellation (group of stars) that looks like a dog. It is called Sirius.
Orion
milky way
the big dipper
The Big Dipper
it looks like a lion
The constellation that looks like a mouse is Musca, also known as Musca Borealis or Musca Australis. It is a small and faint constellation located in the southern sky, representing a fly. The mouse shape is often associated with Mice (the rodent) which is not a recognized constellation in astronomy.
The constellation that looks like a "M" is Cassiopeia. Cassiopeia is named after the queen in Greek mythology and can be seen in the northern sky. It is made up of five bright stars that form a distinctive "W" or "M" shape depending on its position in the sky.
The constellation that looks like an "M" is Cassiopeia. It has a distinctive shape resembling a letter "W" or "M" in the night sky, and is easily recognizable due to its position in the northern hemisphere.
Pisces
Yes it does and it is called the Canis Majorconstellation. The final shape of the constellation looks like a cat or a dog.
Pisces is the main one that looks like a fish, however there is also Volans which represents a flying fish.