Scientific name: Megaptera novaeangliae
Size: Up to 58 feet
Color: Dorsal face dark gray or black, white ventral side
Distinguishing feature: Hump at the base of the dorsal fin. Very large pectoral fins of about 13.2 feet.
Where did we see it: French polynesia, Mayotte
The humpback whale feeds mainly on herring, mackerel, sardines and grills (plankton) and can weigh up to 40 tonnes.
She has apneas between 15 and 25 minutes and can go down to 650 feet. Its cruising speed is 5 miles / h and it can make sprints up to 12.5 miles / h.
The sound of whales is one of the most studied now, without knowing what it is used for. It could (but maybe this is not the case) be linked to reproduction: a hypothesis is that of a song of males to conquer females. Another would be a means of conversation and an identity of the whale (the song would be different from one whale to another and allow them to recognize each other).
Jump in water is very regulated thanks to a charter of the whale, in the world very few place really have the right to do it, thank you to inform you well on it!
Turtles are in economy mode when they are sleeping. If they are woken during night, they may not have enough air to return to surface.
So, please be careful during night dives!
The tiger shark has slender marks similars to the lines of tigers, hence its name.
When it is juvenile, these marks are round and not vertical. They change when it grows.
The whale shark is the largest fish in the world!
Some whales are larger, but they are mammals, not fish!