Motion in the Ocean Lecture

The blue whale is the largest animal on the planet, throughout every ocean. Males serenade the females by song that can go over 600 miles. Some blue whales have interbreed with fin whales.

Humpback whale males can get into groups and sing songs for 5 to 20 minutes about 23 hours per day and often have hit songs by the season. The females carry their calves for 11 months and during the migration that can last up to 9 months, she does not eat.

Sea turtles don't reach sexual maturity until 10 years old. The make will ride piggyback on her for days or weeks. After hefting herself up to the beach she will dig. Gender is determined by how hot or cold the eggs are incubated.

Most coral will spawn after certain events, like a slacktide, 3 hours after the sun has set, some day after a full moon. They release egg and sperm and hope they mix together and fertilize. They'll become a planula and then into a juvenile coral.

Anemone fish (nemo!) lay eggs by the base of the anemone. They take care of their eggs. The largest fish is a female and the largest male is her breeding partner. The other males wait for the female to die. The large male becomes a female and the largest male at that point now becomes the new female partner. Nemos mom died and so nemos dad would become his mom and nemo would have been his father (now mother) breeding partner. 🤢

All humphead maori wrasse are born females. At 9 years they become a male. Parrotfish can also do this.

Goby can change gender at any time.

Seahorse males are the ones that become pregnant. They do a dance and the female inserts her eggs into the males brood pouch.

A white spotted male pufferfish will create 2m underwater crop circles. Then he picks shells and coral to put it in the center. This is a neat. If she likes it she will give him eggs.

Anglerfish females are the huge scary ones while the males are incredibly tiny. He will bite her and fuse to her body.

Lobster will pee in their lovers face. The female will visit the make everyday for a week and pee a little in his face until she can get past him into his giant den and she can strip off her exoskeleton and he picks her up, cradles her and deposits his sperm. Her exoskeleton will recreate in 30 minutes to days. He will protect her fiercely.

Flatworms are hermaphrodites (male and female) but can't self fertilize. Flatworms do not want to be the female because it costs so much energy. They will fence each other by stabbing the other more than you get stabbed. It is traumatic insemination. The loser becomes the female.

Barnacles have the largest male appendage to their body size on the entire planet.

Female octopuses will mate with their partner and could strangle and eat them. After reproduction the female will lay eggs and never leave them. The female will not eat. The deep sea purple will stay with her eggs for 4.5 years and will die after from starvation.

Argonaut will have an arm that detaches and chases the female to avoid being eaten. Removing their optic nerve, the octopus will leave their eggs and extend their lifespan.

Hammerhead and tiger sharks, as well as eagle rays can reproduce without the help of a male. Czytaj więcej