TY - JOUR AU - MACKINTOSH, N. A. AB - IN his letter to NATURE of June 15, p. 910, Mr. Gray suggests that there is evidence that the Greenland whale grows and multiplies slowly, and attains a considerable age, and he contrasts this with the conclusion mentioned in my paper at the British Association, 1928, that blue and fin whales reach sexual maturity in a comparatively short period. He refers (1) to the length of the Greenland whale and its whalebone at different stages of the whale's growth, (2) to the absence of any sign of increase in the numbers of this species, and (3) to the finding of old harpoons in Greenland whales. TI - Growth and Longevity of Whales JO - Nature DO - 10.1038/124302c0 DA - 1929-08-24 UR - https://www.deepdyve.com/lp/springer-journals/growth-and-longevity-of-whales-L2HTFbjyWE SP - 302 EP - 302 VL - 124 IS - 3121 DP - DeepDyve ER -