In Photos: Ghosts and Goblins take over Edmonton Valley Zoo

Edmonton’s Valley Zoo was a little spookier than usual Sunday afternoon.

Hundreds of children were invited to dress in their costumes and enjoy a Halloween themed day as part of the annual Boo at the Zoo.

The fun-filled day included hands-on science experiments, crafts, extinct animal graveyards, as well as a witches den.

Several animals received pumpkin treats to munch on as part of the fun.

Boo at the Zoo is an annual event.