Humpback Whale (Megaptera novaeangliae) fluke

            The humpback whale (Megaptera novaeangliae) is a species of baleen whale. It is a rorqual (a member of the family Balaenopteridae) and is the only species in the genus Megaptera. 

The adult humpback whale is generally 14–15 m (46–49 ft), though longer lengths of 16–17 m (52–56 ft) have been recorded. Females are usually 1–1.5 m (3 ft 3 in – 4 ft 11 in) longer than males.

The species can reach body masses of 40 metric tons (44 short tons). Calves are born at around 4.3 m (14 ft) long with a weight of 680 kg (1,500 lb).

The body is bulky with a thin rostrum and proportionally long flippers, each around one-third of its body length.[15][16] It has a short dorsal fin that varies from nearly non-existent to somewhat long and curved. 

As a rorqual, the humpback has grooves between the tip of the lower jaw and the navel. They are relatively few in number in this species, ranging from 14–35. The mouth is lined with baleen plates, which number 270-400 for both sides.

Unique among large whales, humpbacks have bumps or tubercles on the head and front edge of the flippers; the tail fluke has a jagged trailing edge.

The tubercles on the head are 5–10 cm (2.0–3.9 in) thick at the base and poke up to 6.5 cm (2.6 in). They are mostly hollow in the center, often containing at least one fragile hair that erupts 1–3 cm (0.39–1.18 in) from the skin and is 0.1 mm (0.0039 in) thick. The tubercles develop early in the womb and may have a sensory function as they are rich in nerves.

The dorsal or upper-side of the animal is generally black; the ventral or underside has various levels of black and white coloration. Whales in the southern hemisphere tend to have more white pigmentation. The flippers can vary from all-white to white only on the undersurface.

The varying color patterns and scars on the tail flukes distinguish individual animals. The end of the genital slit of the female is marked by a round feature, known as the hemispherical lobe, which visually distinguishes males and females.

This image was taken from the beakwater at Honningsvag Harbour in Norway

Taken in: Norway / Finnmark / Honningsvåg (show map)

Taken on: June 6, 2023

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Camera: Canon EOS R5, f/7.1, 1/3200 sec, 472mm, ISO 640 (more info) (hide info)

Camera:	Canon EOS R5
Lens:	RF100-500mm F4.5-7.1 L IS USM
Aperture:	f/7.1
Exposure Time:	1/3200 sec
Focal Length:	472mm
ISO:	640
Exposure Bias:	0 EV
Flash:	No Flash
Exposure Program:	Shutter speed priority AE
Exposure Mode:	Auto
Metering Mode:	Multi-segment
White Balance:	Auto
Color Space:	sRGB
Software:	Adobe Photoshop Lightroom Classic 12.3 (Macintosh)
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