Good morning on this sleepy Tuesday.

It will be 80 degrees and glowing in New York City today.

(Well, at least in one little slice of the Upper West Side.)

“It’s like a bright, sunny day in here,” said Hazel Davies, who oversees the Butterfly Conservatory, a lush tropical bubble inside the American Museum of Natural History. “In the winter, it’s warm and it’s full of color and movement.”

There are nearly 600 butterflies floating around the vivarium today, and over the course of the eight-month exhibition, tens of thousands of butterflies — from as far away as Australia and Africa — have glided through.

“I particularly like butterflies because I think they’re the ambassador insects,” Ms. Davies told us during a recent visit. (Almost on cue, an orange longwing landed on her head to listen.) “Anybody that’s really scared of insects generally likes butterflies because they’re pretty. If we can get people to come and look at them because they think butterflies are beautiful, then we can also tell them lots of other things about insects.”