Desirée L. Narango

[butterfly rustling] That's the sound of a monarch butterfly rustling its legs.

Biologist Desiree Narango is holding it very gently by the abdomen in her Vermont lab.

To hold a butterfly, this part right here, this part of the vein, is the strongest part, so you can hold that safely.

Next, Narango attaches a tiny transmitter to the butterfly's abdomen using non-toxic eyelash glue before releasing it outside to start its migration.

[butterfly fluttering] That's the sound of a monarch butterfly rustling its legs.

Biologist Desiree Narango is holding it very gently by the abdomen in her Vermont lab.

To hold a butterfly, this part right here, this part of the vein, is the strongest part, so you can hold that safely.

Next, Narango attaches a tiny transmitter to the butterfly's abdomen using non-toxic eyelash glue before releasing it outside to start its migration.