One scientist's hobby: recreating the ice age

CHERSKY, Russia (AP) -- Wild horses have returned to northern Siberia. So have musk oxen, hairy beasts that once shared this icy land with woolly mammoths and saber-toothed cats. Moose and reindeer are here, and may one day be joined by Canadian bison and deer....

Read the whole article on AP Science

More from AP Science