National Geographic : 1980 Oct
A great vacation in Maryland is right at your fingertips. Our toll-free number gets the information you need. We'll send you our tourist kit that includes: accommodation guide, our calendar of events, a campground guide, maps, history, restaurants. Just call Maryland Tourism, and we'll send it. Come see My Maryland. MARYLAND 000-630-5252 (Inside Maryland call toll-free 800-492-7126) Hanging by their toes, flying foxes await dusk to unfold their wings. Biggest of bats-the wingspan of one species reaches five feet-' they thrive on tropical fruits. With eyes ten times as sensitive as man's, these fruit bats forage by sight. But sonar guides most bats. Bouncing high-frequency beeps off objects, they dart and dive for their supper. Mexican free-tailed bats snap up 20,000 tons of insects a year in Texas alone. Other members of the order Chiroptera ("hand-wing") nab lizards, gaff fish, sip nectar. Vampires drink blood. Though carriers of rabies to Central American cattle-rarely to man-vampires belie their horror-movie image. Timid, delicate, they tame quickly with skilled handling. To shed light on a nocturnal world, scientists brave . eerie caves and cobwebbed attics. Readers appreciate such demanding, on-the-spot coverage. They receive it every month in the pages of NATIONAL GEOGRAPHIC.