Subject: Number of calves produced

Dr. Cathy Schaeff (
Wed, 01 Oct 1997 17:27:36 +0000

>From Reggie and Neil: How many babies do Blue whales have each year?

Generally whales have only a single calf at a time due to the energy
required to nurse it for the first year if its life.  Also, most whales
don't produce a calf every year but rather every two or three years. 
The break in the middle lets the female recover from producing and
nursing the first calf before she starts on the next.
Dr. Cathy Schaeff
Biology Department 
American University
4400 Mass. Ave. N.W. 
Washington D.C. 20016-8007
(202) 885-2175 (phone)
(202) 885-2182 (fax) (email)