What are the most interesting seals?

What are the most interesting seals? The seal family might seem rather homogeneous at first glance, but if you take a closer look at its various species it becomes a lot more diverse. Here are the ones which stand out the most, to me at least. Leopard seals. This one’s an obvious choice. The third largest seals in the world (at up to 600 kg), they are easily recognized by their massive, reptilian head and muscular body. What really distinguishes them is their diet. They are the only “macropredatory” seals, feeding on large animals such as seabirds, penguins, and other seals - even young elephant seals! Ironically, they sometimes also feed on microscopic krill. The leopard seal is the only seal species known to have killed a human (a British scientist, in 2003). Elephant seals. There are two species of elephant seal - one in southern waters, the other on North America’s Pacific coast. The former is actually the world’s largest carnivoran, with the largest males weighing in around 4,000 kilograms. Females are much smaller, as both species are highly sexually dimorphic. The males also possess a large, trunk-like proboscis which has the incredible function of recycling the moisture which they exhale; it’s like a biological version of the Fremen stillsuits in Dune. Southern elephant seals are also the deepest-diving seals, sometimes venturing more than 1.5 km…

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Since birds and dinosaurs are related, is it possible that some dinosaurs were as smart as corvids or parrots?

I’m sure you’ve gotten the “birds are dinosaurs” spiel several times over at this point, so I’ll spare you another, and assume you’re referring to non-avian dinosaurs specifically. The closest thing we have to a way of measuring the intelligence of extinct animals (and it’s still not very close at all) is by determining their encephalization quotient, or EQ. It’s a common misconception that this is just the ratio of brain mass to body mass - it’s a little more complicated. It should come as no surprise that different animals have different sized brains. It’s also fairly intuitive that a brain of any given size would be more impressive in a very small animal than a very large one, since it takes up a higher proportion of the body. That’s certainly true - to a certain degree. If you sort animals by their brain-to-body mass ratio, it quickly becomes clear that this figure alone correlates little with intelligence. Tiny invertebrates like snails often rival primates, mice and men are similar, and the highest ranked animals are small birds. This is because of the square cube law, a very important concept in biology. If I explained it fully, this answer would become an exhaustive novella, but long story short - brain size does not scale in a linear pattern. The larger an animal gets, the…

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