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"When he first came in, he was pretty malnourished, and we just wanted to make sure we were giving him all the supportive care he needed," said Allie Cojocaru, an animal rescuer. "So we did tube feed ...

Zoos are ramping up protections for their animals, after a seal died in February, from the avian flu. Blue, the 21-year-old ...

Blue was placed under veterinary observation on Jan. 31, but his condition had not yet been diagnosed when he died earlier this month.

Blue, a 21-year-old harbor seal, is believed to have contracted the virus through contact with a wild bird, zoo officials said.

In the segment, called the "All Seals Edition!," Colbert said "It seemed like a successful rescue mission" and played a clip of a sea lion clapping. Colbert then mentioned another February incident, ...