Colby the sea lion pup is Milwaukee Co. Zoo's newest member

MILWAUKEE -- The Milwaukee County Zoo welcomed its newest member -- a sea lion pup!

Mom, Makaia gave birth last week to a healthy sea lion pup names Colby.

Colby weighs 10 pounds but when he grows up, he'll top the scales at a whopping 700 pounds!

Sea lion pups are born on land and don't know how to swim until they are about a month old. It takes a little bit of time, learning and developing the strength to get ready for the water.

"We're teaching him to be comfortable in water, in a small baby pool -- a kiddie pool! That'll go in later this week.  He'll learn to hold his breath, to put his face underwater and just start playing and having fun in a water environment," Shelley Ballmann with the Milwaukee County Zoo said.

Eventually, trainers will get Colby into the pool, where he will learn to hoist himself out and balance on the ledge.