Readers ponder animal flight

Reader feedback on the June 11, 2016, issue of Science News

Flightless perks

Galápagos cormorants are the only cormorant species with wings too small to fly, and broken cellular antennae that transmit garbled developmental messages are probably to blame, Tina Hesman Saey reportedin “How a Galápagos bird got tiny wings” (SN: 6/11/16, p.