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Science

Whales used to be land predators? Fascinating video explains how they're related to wolves.

But not all mysteries are solved.

whales evolve from wolves, wolf whale evolution
Photo by Marek Szturc on Unsplash, Photo by Todd Cravens on Unsplash

Did seals get lost in the mix?

I think it’s pretty safe to say that when it comes to evolution, most people typically picture aquatic life forms sprouting legs then coming onto land … not the other way around.

Shockingly enough, a creature almost synonymous with the sea didn’t actually begin that way. And boy, is it a whale of a tale.

A mind-blowing video recently posted by PBS Eons reveals that whales were actually predatory land animals … the same ones that would later become wolves, specifically.

Yep, you read that right. Land animals. With arms and legs and everything.

To explain, we’ll need to go back 52 million years.



Before the warm and rainy Eocene epoch—the same time period that brought us the first horses and bats—whales looked more like the image below.

Something like a mix between a wolf and crocodile, if you ask me.

how wolves became whales, pbs eons youtube, nature vides youtube

You know it's hotter under the water.

YouTube

Yes, animals did move from the sea to the land, bringing us the first mammals. But then, over time, some mammals were like, "nah, it's that ocean life for me." Including some of these fellas.

These creatures first went into the water during the Eocene time period and eventually traded in their arms to become “sleeker and more streamlined,” while still holding onto their teeth.

By now they look less like a wolf and more like a murderous dolphin.

whale evolution, whale science

You're welcome for the nightmare fuel.

YouTube

Cut to roughly 34-36 million years ago, and the species have diversified into the two major whale groups we see today: the Odontoceti (or “toothed whales”), which include sperm whales, orcas and dolphins, and the Mysticeti, better known as baleen whales … you know, those big guys with the filter-like “teeth” (aka baleen) that eat loads and loads of plankton?

The baleen whale’s evolution in particular has scientists a bit baffled, as there is no definitive evidence as to how, when or even why they began filter feeding in the first place. In fact, the first fossil of a mysticetes appeared around 36 million years ago, but baleen doesn’t show up until later, around 11 million years ago. Even the baleen’s oldest ancestor, the Mystacadon, according to the PBS video, showed no signs of baleen when researchers discovered it in 2019.

One theory: The cooled ocean current of the Oligocene epoch brought about an abundance of nutrients—specifically plankton—which made it more advantageous to bulk feed rather than hunt for single prey. This also helps explain the giant boom in different whale species.

Still, it’s all up for debate, and likely will be for a while since ancient baleen is hard to come by. Baleen, unlike teeth, is made of keratin, the same biodegradable substance hair and nails are made out of and, therefore, doesn’t fossilize well.

As the host cleverly quipped, “It’s basically like a big mustache inside the whale's mouth.”

Bottom line: We know a lot about nature, but there is still so much to learn.

If you’d like to find out more—like how the Mystacadon ate its prey by doing a super weird thing called suction feeding—you can check out the full video here:

Family

Man lists 8 not fun, but very important things you need to start doing as an adult.

"Welcome to being an adult. Maybe you weren't told this by your parents, but this is through my trial and error."

@johnfluenzer/TikTok

8 things you should be doing as an adult. Spoiler alert—none of them are fun.

Who among us hasn’t come into full adulthood wishing they had known certain things that could have made life so so so much easier in the long run? Choices that, if made, ultimately would have been much better for our well-being…not to mention our wallets.

But then again that is all part of growing older and (hopefully) wiser. However there is something to be said about getting advice from those who’ve been there, rather than learning the hard way every single time.

Thankfully, a man who goes by @johnfluenzer on TikTok has a great list of things young people should start doing once they become adults. Are any of his suggestions fun, cool or trendy? Not at all. But they are most definitely accurate. Just ask any 30+-year-olds who wished they had done at least four of these things.
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