How do Hovering Hummingbirds Survive Hot Days?

Backed by Jonathan Cisneros, Roy Dunn, Eric Amodei, Dilan Casupang, Isaiah, Valerie Melanson, Gellyn Flores, Tania Henry, Al Werner, Jessi-Ann Michaelson, and 30 other backersKendall Shimabukuro, Laraine Turk, Zail Chapman, Brandon Lorezco, Blaze Amodei, Michelle Conklin, Melanie Mullins, Jim Orazem, Elizabeth Nestor, Donald R Powers, Peggy Martinez, Kathleen Anderson, Isabelle Cisneros, Claudette Hulce, Serena S, Jackie Fitzner, Jessa Mae Baclaan, Markus Friedrich, Keely Corder, Amanda Clayton, Katsuyuki Sakai, Zhoey Irorita, Paycence Stonebraker, Rose Anne Agustin, Amy Collette, Jason P Schein, Nicolas Jeker, David Esopi, Eric D. Walters, and Mohammad Faisal Haider