Science Magazine Snippet: Sea stars can coordinate their “feet” to bounce

They aren't always this coordinated but in cases of emergency, sea stars can coordinate their 'feet' Learn more: https://www.sciencemag.org/news/2019/...

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These videos are short snippets from researchers' work—often videos actually used as data in a study or to demonstrate results in a paper. For context or additional explanation, check paper links and credits.

CREDITS
producer
Sarah Crespi

protoeaster sea star
Video taken by A. Johnson and O. Ellers
in collaboration with Dr. Tatsuo Motokawa,
at Tokyo Institute of Technology and
K. Guttenplan (Bowdoin post-graduate).
Compilation of videos by A. Johnson.

asterias sea star
Video taken by K. Novak and D. Kim
(undergraduate researchers in Johnson/Ellers lab),
Video tracked and compiled by A. Johnson and O. Ellers.

luidia sea star
Video taken by R. Etzel and J. Khoriaty
(undergraduate researchers in Johnson/Ellers lab),
Video tracked and compiled by
R. Etzel, J. Khoriaty, and A. Johnson.

music
"Scribe"
Nguyên Khôi Nguyên

1. LagiNaLangAko23: +Betty Woop Toxapex
2. HighTower: looks like me, when itry to get away from my tasks.
3. LagiNaLangAko23: I like that led on top. Starmie? Staryu! Edit: Oh, it's not an LED.
4. Math_Triangle: +Joe Doe thx man
5. _Paws_: The music gives a bounce to their step
6. Mobutu Obama: Any creature "bounces" as they walk tho...
7. Yatin T: I was expecting it to jump a little... 😅
8. Greg Hartwick: That is ‘way cool’, Burfert! You should see me on the dance floor, I have trouble coordinating Two Feet.🙃
9. Ebumbaya ': I assume this is faster than the alternatives? Why?
10. Rowan Etzel: +firluk well centipedes do have a sort of rippling coordination to my eye, with legs following each other in a kind of wave, whereas these dudes don't have any discernible coordination when they're crawling. Plus centipedes's legs are organized bilaterally on the body in a linear way... I'm trying to think of another animal that has a similar set up of independently moving limbs that don't move with each other and I'm not coming up with anything! Ideas??
11. iampdv: It looks like they know where they are going. Shall we follow them?
12. Math_Triangle: Wow this is funny and cool at the same time!
13. Joe Doe: Totally agree, also just checked out your channel and subbed! Its great! First video like 3 hrs ago, WOW!
14. roza george: Why is this hilarious?
15. Danielle Spargo: Ok, so what are the implications of this finding? Do they only coordinate their feet in certain situations? If so, what are they? Why do they do it? Or do they all just always walk like this? Does it help them avoid predators, or find food? I mean, the video showed just what the title said, so i can't say clickbait but... I was hoping for at least some explanation.
16. Banka: can i stick my dick in it? i want to stick my dick in it
17. Rutger Gemert: Did I just watch a sea star walk for 2min? Coooool
18. Dyslexic Artist Theory on the Physics of 'Time': I am bouncing back to you!
19. AdHoc: Your videos are so weird. And I love it.
20. Штатный Комментатор: ☺
21. Rowan Etzel: not if you have hundreds of feet! the normal "crawl" you'd imagine sea stars doing has no such periodicity- that's why this is so weird
22. El_George: Imagina que se tropiece y se da una verguisa en 3 metros con esos mil pies
23. Betty Woop: Staryu?
24. GirtheAlienGoldfish: my naem is star i am smol fish i hab five arm and body of squish when i am not having fun i use my feets to do a run
25. Bart Bols: They see me rolling... they hatin.
26. OmegaFalcon: ok... "bounce" is a bit of a stretch here. it's just moving forward and bobbing up and down in the process.
27. BanditRants: I don't remember this Pokemon
28. M: Wow!
29. firluk: +Rowan Etzel i imagined it would be more similar to centipedes for example
30. Canal do Miau!: A natureza é perfeita.
31. Rowan Etzel: Read the article! It gives a bit more context. As for the questions the article doesn't answer: we're working on it!
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Snippet: Sea stars can coordinate their “feet” to bounce
193 Likes	193 Dislikes
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Science & Technology	Upload TimePublished on 9 Jan 2019