Page 206 - Das Wunder der Migration bei Tieren

Ric hard son's gro und squ ir rels li ve in the
wes tern pla ins of North Ame ri ca. The ir ho me
usu ally ta kes the form of a ma ze-li ke bur row
with one ma in
ent ran ce and several emer gency exits. Yo ung
ma le squ ir rels tra vel 9.6 ki lo me ters (6 mi les)
in 72 ho urs—a very gre at dis tan ce when the
squ ir rel's size is taken in to ac count.

204