Now, to aw-up on a story we brought you thursday. That baby walrus, rescued off the coast of alaska, waking up at his brand-new home for the first time this morning at the new york aquarium, after a... See More
Now, to aw-up on a story we brought you thursday. That baby walrus, rescued off the coast of alaska, waking up at his brand-new home for the first time this morning at the new york aquarium, after a cross-country commute. And abc's john muller was there for his big welcome. Reporter: He's only 4 months old and already weighs 234 pounds. And sports a mustache so thick, it puts dr. Seuss' lorax to shame. Meet mitik. He is making waves and slashes at new york city's hairiest and cutest new resident. Mit and another walrus were rescued off the coast of alaska in july, after being separated from their herd of nearly 1,000. They were brought to the alaska sea life center. Getting around the clock tlc. When he was found, he was dehydrated. He's developed some bladder problems. Reporter: In the beginning, mit was so sick, he couldn't take a bottle feeding. No such problems now. The ball of flubber likes acuddle, his toys and getting sprayed with a hose. Thursday, he was placed aboard a fedex cargo jet and flown 4,500 miles to his new home. He's doing well. He's hitting his milestones. And we hope he will continue to do so. The scrappy little fellow coming in as the perfect new yorker. It's amazing. Reporter: Mit will be quarantined for at least 30 days. Visitors eager to welcome him may have to wait until next spring to meet the jowly giant. But mit is sure to be a hit. For "good morning america," john muller, abc news, new york.
This transcript has been automatically generated and may not be 100% accurate.