explainers-nysci:

Fight your Fear with Five Shark Facts:
1: Approximately 3.17 sharks are killed by humans every second while only less than 6 humans are killed by sharks every year. 
2: Sharks are relatively high in the food chain and keep populations of prey in check. 
3: Sharks have roamed the ocean for almost 400 million years, even before the dinosaurs. 
4: Your chances of encountering a Shark is very rare. You are more likely to get struck with lightning than to encounter a Shark.
5: Sharks are a slow growing species that don’t breed often. They are vulnerable to extinction.
Sharks have a bad rep above the ocean. Their creepy grins, appetite for meat and sharp teeth make it hard to appreciate them. While it may seem like they are out to get us, sharks are a magnificent species that need to be protected.
Sources

explainers-nysci:

Fight your Fear with Five Shark Facts:

1: Approximately 3.17 sharks are killed by humans every second while only less than 6 humans are killed by sharks every year. 

2: Sharks are relatively high in the food chain and keep populations of prey in check. 

3: Sharks have roamed the ocean for almost 400 million years, even before the dinosaurs. 

4: Your chances of encountering a Shark is very rare. You are more likely to get struck with lightning than to encounter a Shark.

5: Sharks are a slow growing species that don’t breed often. They are vulnerable to extinction.

Sharks have a bad rep above the ocean. Their creepy grins, appetite for meat and sharp teeth make it hard to appreciate them. While it may seem like they are out to get us, sharks are a magnificent species that need to be protected.

Sources

edwardspoonhands:

scishow:

trailburstnuggets:

jaybarou:

whitestuffknowslimits:

heytheretylerr:

WHAT KIND OF WIZARD FISH IS THIS

DUDE THATS A BABY KAIJU

pew, pew!

SCIENCE SIDE OF TUMBLR URGENT

YOU CALLED!?
This fish is not actually spitting bioluminescent spit…it’s spitting out its bioluminescent food! Some clever scientist has put some bioluminescent ostracods in a tank with some little fish. When agitated, these ostracods (tiny shirmpthings) secrete chemicals that, when combined, emit light.
Why?
You’re seeing why right here. Just before the fish spits it out, those light chemicals are filling up the belly of the fish. Now, it isn’t poisonous or anything…but the fish wants NOTHING TO DO WITH IT because the fish has predators too. 
So yeah, if you’re a little fish and suddenly you’re FREAKING GLOWING, your lifespan has just gotten a lot shorter. 
As soon as the fish realizes that there’s light emanating from its belly, it pukes out the glowing juices (and the little shrimp). You can actually see the ostracod in this gif swimming away down toward the bottom of the tank happy as a clam…or a shrimp. 
Evolution is AWESOME.

This is why you gotta follow SciShow on Tumblr.

edwardspoonhands:

scishow:

trailburstnuggets:

jaybarou:

whitestuffknowslimits:

heytheretylerr:

WHAT KIND OF WIZARD FISH IS THIS

DUDE THATS A BABY KAIJU

pew, pew!

SCIENCE SIDE OF TUMBLR URGENT

YOU CALLED!?

This fish is not actually spitting bioluminescent spit…it’s spitting out its bioluminescent food! Some clever scientist has put some bioluminescent ostracods in a tank with some little fish. When agitated, these ostracods (tiny shirmpthings) secrete chemicals that, when combined, emit light.

Why?

You’re seeing why right here. Just before the fish spits it out, those light chemicals are filling up the belly of the fish. Now, it isn’t poisonous or anything…but the fish wants NOTHING TO DO WITH IT because the fish has predators too

So yeah, if you’re a little fish and suddenly you’re FREAKING GLOWING, your lifespan has just gotten a lot shorter. 

As soon as the fish realizes that there’s light emanating from its belly, it pukes out the glowing juices (and the little shrimp). You can actually see the ostracod in this gif swimming away down toward the bottom of the tank happy as a clam…or a shrimp. 

Evolution is AWESOME.

This is why you gotta follow SciShow on Tumblr.