. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. Jan Feb Mar Apr MaLj|Jun|Jul [Aug'ISep Oct|Nov| Dec Fig. 55. Humpback whale. Pairing frequencies by Jan Feb Mar Apr Maij Jun Jul Aug Sep Oct|Nov|Dec Fig. 56. Humpback whale. Birth frequencies by months. section. A further possibility to be noted is that some of the small amount of breeding outside the main season may be due to renewed breeding by cows that have lost their calves. Sexual cycle. The results of the examination of nineteen female Humpback whales are now given, before consid
. Discovery reports. Discovery (Ship); Scientific expeditions; Ocean; Antarctica; Falkland Islands. Jan Feb Mar Apr MaLj|Jun|Jul [Aug'ISep Oct|Nov| Dec Fig. 55. Humpback whale. Pairing frequencies by Jan Feb Mar Apr Maij Jun Jul Aug Sep Oct|Nov|Dec Fig. 56. Humpback whale. Birth frequencies by months. section. A further possibility to be noted is that some of the small amount of breeding outside the main season may be due to renewed breeding by cows that have lost their calves. Sexual cycle. The results of the examination of nineteen female Humpback whales are now given, before considering the course of the sexual cycle. The whales are arranged according to the dates of their capture. No. 317. Length 14-1 m. South Georgia. Pregnant. This whale was very rotten, but was pregnant with a foetus o-68 m. in length, and one ovary contained a corpus luteum a, 6-6 cm. in mean diameter. No. 321. Length 14-9 m. 10. i. 26. South Georgia. Pregnant. Foetus, female 0-64 m. long. The ovary containing the corpus luteum a (not measured) had no other corpora lutea and no scars. The other ovary contained one corpus luteum b, 5-3 cm. in mean diameter, and was scarred. This whale had therefore probably become pregnant at the second ovulation of the previous sexual Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Institute of Oceanographic Sciences (Great Britain); National Institute of Oceanography of Great Britain; Great Britain. Colonial Office. Discovery Committee. London ; New York : Cambridge University Press
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