#science facts

[theofficialastronomy101]

[geek-22]

I cannot for the life of me find the OG post, if anyone knows what these accounts are called now I will cry (positive)

[queercodedangel]

The idea that there are "too many people" and the belief that we need to "work harder and be more productive" in order to keep society functioning are probably two of the most harmful neoliberal myths.

[protectoursharks]

I learned a cool thing about sharks at the aquarium and was wondering if I could tell you? I mean, you probably already know it. But apparently the reason a lot of shark incidents aren't fatal are because the shark takes a bite, realizes what they're biting isn't food, and so they basically go "my bad, you aren't food" and leave. It was a little "test bite" and the test revealed that what they were biting wasn't food so they left. Or they were just biting because they felt threatened and they weren't actually looking to kill the human, just get the fellow apex predator to please leave them alone. This is why we can touch little sharks in some aquariums, because they're well-fed so not gonna test bite us and they also have a safe escape and so aren't going to bite the people in an effort to be left alone, because they don't like picking fights and if they have an easy out, they'll take it.

I don't know, I just thought this was so cool.

Yes!

The "Mistaken Identity Hypothesis" proposes that sharks have a hard time differentiating humans from their normal prey from below. They take one bite, realize we're not a seal or turtle, and swim away. However,

Sharks have better eyesight than most people think!

This doesn't explain why there have been attacks in very clear water

You've probably seen videos of sharks attacking their prey; there's a lot of force behind those attacks, sometimes even breaching the water. In most cases, when a shark attacks a human it's with much less force and energy

There have been cases of sharks routinely biting- but not eating- penguins off the coast of South Africa

Sharks aren't mindless killers, they're animals who get curious! If they see something they don't recognize or encounter often, they might just want to take a bite to see what it is.

The simpler reason most sharks don't bite humans twice is because we taste bad.

[factsbyscience]

NASA rovers and landers such as Spirit, Opportunity, Curiosity, and Perseverance have captured images of Martian sunsets. These photos are possible thanks to cameras equipped on these robotic explorers, which are capable of surviving and operating on the Martian surface.

In 2005, NASA’s Spirit rover took the first color images of a Martian sunset.

These sunsets appear blue near the Sun and reddish farther away — the opposite of Earth — due to the way Martian dust scatters sunlight in the thin atmosphere.

Humans have wondered about the skies of other planets for millennia, but only in the 21st century have we gained the technology to literally see what a sunset looks like on another world.

This makes our generation the first to witness something that was once purely science fiction.

[amnhnyc]

Animal lovers, have you ever heard of the zebra duiker (Cephalophus zebra)? This small ungulate can be found in parts of West Africa, including Liberia. Adults typically weigh up to 44 lbs (20 kg)—no larger than a medium-sized dog! This critter’s diet includes hard-shelled fruits, which it cracks open using a thick bone in its skull. Its signature stripes help it hide from predators, and it is rarely seen in the wild.

Photo: Kispál Attila, CC BY-SA 4.0, Wikimedia Commons 

[slice-of-ny]

Weekly Science Fact! ⋆ ˚｡⋆୨୧˚

✎ Octopuses have three hearts and blue blood!

Two of their hearts pump blood through the gills, while the other supplies the rest of the body. Copper (hemocyanin) is used instead of iron (hemoglobin) to carry oxygen in their blood, resulting in a blue color.

Maybe this post is late…maybe time isn’t real…who knows 🐙