GENERAL BIOLOGY 



781 



conditions correspond to those of boreal waters, right whales 

 predominate ; in recent years, however, large numbers of Hn- 



100° 90° 80' 70° 60° 60° 40° 50° 20° 10° 0° 10° 20° iO° 40° 



100° 90" 30° 70" 60° SO" 4.0" JO" 20° 10° 0° W 20" JO" ^Q^ 



Fig. 573. — Distribution of Whales, and Temperature at 100 metres (see text). 



whales and humpbacks have also been found there. In coast 

 waters right whales and humpbacks predominate. In the 

 open ocean between the parallels of lo north and south, 



