. I- i_ QJ J2 Jun Jul Aug Sep' Nov'Dec Jan Feb Mar Apr S Immature,under IS'Smetres ^ Adult, pregnant Adult,over l2-5metres,resting" • O Adult. • Lactating- Fig. 47. Humpback whale. Female. Seasonal variation in fatness. length is plotted by months. Immature males under 12 m. long are plotted separately from mature ones over 12 m. long in Fig. 46: immature females under 12-5 m. long, mature but not pregnant females, and pregnant females are separated in Fig. 47. In both charts the horizontal line represents the average blubber thickness of all whales.

---

Size: 3139px × 1592px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, booksubjectocean, booksubjectscientificexpediti