One of my favorite things to do in my spare time is marine research on marine animals, the climates they live in, average lifespan, average size, everything about the animal I'm researching.
Orca research.
One of my favorite animals to research are orca whales. despite popular belief there are no recorded attacks of orcas killing in the wild most orcas are actually not aggressive in the wild towards humans (that doesn't mean go right next to one and touch it, they're still dangerous predators). The average orca weighs 6,600-8'800 pounds, their average length is 6m-8m and their average height is 1.8m. The average lifespan of a killer whale is 30-100 years but that is cut down to 30 years in captivity in places like SeaWorld and other resorts that have orca shows. Killer whales live in colder climates like Washington and Iceland. All of my research is from google and anonymous sources so I might be incorrect about some things. Websites to visit for more information:
Extinct animal research.
Some of the other animals I like to research are the extinct ones. Like the megalodon and the mosasaurs and other extinct sharks and predators. Scientists believe that the megalodon or "the meg" grew to be between 15-18 meters (49-59 ft) in length (34-44 more ft than the great white) and 143,000 pounds (a lot of lbs. more than the great white.) And then there's the mosasaurs, presumed to have been about 56 ft and 30,000 lbs. The mosasaurs had a diet of fish, sharks, cephalopods, birds, and even other mosasaurs (they were presumed to eat quite literally anything that fit in their mouths,) they would ram and tear apart their prey after they (the prey) became weak, and they went about 30 mph (38 less mph than the fastest animal in the ocean the sailfish). There were other very obscure looking ancient sharks like the helicoprion and the stethacanthus and I'll give some sites bellow so you can learn about them:
I've only been dong this for a little bit so these are the only animals i have really researched but I will update if I can when I research more.