Misc: In 1991 Arthur---------- , dance instructor, dies at 95. ?

Questions

The two ---------- of a dolphin's brain work independently. For 8 hours, the entire brain is awake. The left side then sleeps for 8 hours. When it wakes up, the right side sleeps for 8 hours. Thus, the dolphin gets 8 hours of sleep without ever having to stop physically.?

The underwater mating song of the ---------- is so loud that sometimes it can be heard by humans on the shore.?

Wildlife biologists estimate that as many as five out of six fawns starve to death during a hard winter in ----------?

With few exceptions, birds do not sing while on the ground. They sing during flight or while sitting on an object off the ----------?

With only a four-week gestation period, a cottontail ---------- can produce 5 to 7 litters, and as many as 35 offspring per year.?