ECHOLOCATION
bat: g78 2/8 17-18
examples in creation: ce 158-159
for blind persons: g78 2/8 16-19
baby: g75 8/22 29
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ECHOLOCATION
bat: g78 2/8 17-18
examples in creation: ce 158-159
for blind persons: g78 2/8 16-19
baby: g75 8/22 29