In
a study of Black-capped Chickadees, the portion of the brain used to process
spacial information (the hippocampus) varies in size during a typical
year. It enlarges in the fall and winter, when seeds are harder to locate, coinciding with seed-hoarding and
-finding activity. It shrinks in the spring, when feats of memory are no longer
crucial.
Careful of those
hot-air balloon injuries! During the past 50 years, only 48 U.S. residents contracted rabies from
bats (not "died from"); that's less than one per year. That’s less than the number of hot-air balloon
injuries in the whole country! (for comparison: in 2001 alone, 15,989 people
contracted TB). Nationally, less than half of one percent of bats even have rabies.
Bats aren’t rabies vectors anyway.
Just to be super-safe, however, never pick up a bat from the ground with your bare hands.
OWEN YOST, in addition to being a
blogger, is a licensed Landscape Architect emeritus who has lived and worked in
north Texas for over 30 years. He is the recipient of a Lifetime Achievement
Award of the Native Plant Society of Texas, and is a member of the American
Society of Landscape Architects (ASLA), International Federation of Landscape
Architects, National Wildlife Federation and the Audubon Society. His office is
at Yost87@charter.net in Denton.
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