Pete Oxford / Spix's Disk-winged Bat (Thyroptera tricolor) flying showing discs on feet, Yasuni National Park, Amazon, Ecuador

Christian Ziegler / Spix's Disk-winged Bat (Thyroptera tricolor) pair roosting in rolled up Heliconia (Heliconia sp) leaf with the help of tiny suction cups on their wings, Smithsonian Tropical Research Station, Barro Co...

Christian Ziegler / Spix's Disk-winged Bat (Thyroptera tricolor) group roosting in rolled up Heliconia (Heliconia sp) leaf with the help of tiny suction cups on their wings, Smithsonian Tropical Research Station, Barro C...

Christian Ziegler / Spix's Disk-winged Bat (Thyroptera tricolor) placed in a glass cylinder to show suction cups on its wings, Smithsonian Tropical Research Station, Barro Colorado Island, Panama

Pete Oxford / Spix's Disk-winged Bat (Thyroptera tricolor) with bat researcher Jaime Guerra, Yasuni National Park, Amazon, Ecuador

Pete Oxford / Spix's Disk-winged Bat (Thyroptera tricolor) in rolled leaf of Heliconia (Heliconia sp), Yasuni National Park, Amazon, Ecuador

Christian Ziegler / Spix's Disk-winged Bat (Thyroptera tricolor) group roosting in rolled up Heliconia (Heliconia sp) leaf with the help of tiny suction cups on their wings, Smithsonian Tropical Research Station, Barro C...

Grant Maslowski / Spix's disk-winged bat (Thyroptera tricolor) roosting within a plantation banana leaf, within a flight cage, Smithsonian Bat Lab, Smithsonian Tropical Research Institiute, Gamboa, Colon Province, Pana...

Grant Maslowski / Spix's disk-winged bat (Thyroptera tricolor) roosting within a plantation banana leaf, within a flight cage, Smithsonian Bat Lab, Smithsonian Tropical Research Institiute, Gamboa, Colon Province, Pana...

Grant Maslowski / Bat researcher inserting a transponder into Spix's disk-winged bat (Thyroptera tricolor), Smithsonian Bat Lab, Smithsonian Tropical Research Institiute, Gamboa, Colon Province, Panama. Captive (for on...

Grant Maslowski / Bat researcher holding Spix's disk-winged bat (Thyroptera tricolor) showing disks on its thumbs and hind feet that act as suction cups, Gamboa, Colon Province, Panama. Controlled conditions.

Christian Ziegler / Spix's Disk-winged Bat (Thyroptera tricolor) suction cup on foot at night, Smithsonian Tropical Research Station, Barro Colorado Island, Panama