Adam Chester no, because i was ignorant on this subject.

Ronald Mcarther is a troll lmao wow get a life

truuuue

+rawstarmusic look up aquaponics

Phillip Lam Oh I love it. Aquaponics, ways to use the biggest life habitat on earth, the oceans for plants and fish, foods and veggies. Without sharks you can even take a bath cause we don't need much sharks around. Multiple ways to fill the oceans with life. As long as we plant there's fresh food the year around. Fortunately it's healthy food. If you eat a lot you become more healthy, if you eat a lot of burgers and fries you get less heathy.

+rawstarmusic we need sharks too

Hawaiian Mermaid 23 No we don't need sharks. They make sure that there is not to much of smaller fish like tuna but we need all the tune we can get. The soup we make of them isn't tasty so fish them out and let the oceans overflow with food fish.

rawstarmusic sharks are mostly needed, they don't compete for fishing resources with us, rather they eat ill and old fish, helping fish populations to be healthier, without the risk of epidemics. Thus, sharks help us to have a tastier healthier fish dish on our table

Cute little baby pillar corals. thats whats up

they are not the same thing, they are related but as much as you or I are related to a cat

Mud Hut wrong. Coral polypes actually spew out jellyfish as a means of reproduction and expansion, the jellyfish will then spew out a fertilized egg which will attach to the ocean floor and develop to become a new polype (coral).

I'm a wildlife biologist, you're getting terms confused of colloquialisms. Jellyfish and Corals are in the same Phylum but belong to different orders, the same way mammals are in the same phylum as other chordates. They share similar anatomies and strategies, but corals are not the same thing as jellyfish. They have different genetic lineages with a common ancestor. Research Phylum Cnidaria if you don't believe me.

Mud Hut I'm only a student in biology but I'm sorry I have to disagree. Since I'm french, we might be using different terms and I might be mixing it up. Even so, I have my notes and cycles right in front of me, and it says there are indeed different orders, some only sessile (talked about in this video), some only free (jellyfish), but most have 2 stages: one where the individual is fixed and as a colony makes up a big part of the coral, and spew out a free jellyfish. I'm quoting wikipedia (just so I don't make any error in translating, I cross-checked with what I learned in class): "In the Cnidaria, sexual reproduction often involves a complex life cycle with both polyp and medusa stages. For example, in Scyphozoa (jellyfish) and Cubozoa (box jellies) a larva swims until it finds a good site, and then becomes a polyp. This grows normally but then absorbs its tentacles and splits horizontally into a series of disks that become juvenile medusae, a process called strobilation. The juveniles swim off and slowly grow to maturity, while the polyp re-grows and may continue strobilating periodically." the free medusae will then host the zygote's encounter, and the egg formed will develop into a larvae which will attach to the ocean floor to make a new polype. So, true the jellyfish isn't actually a larvae (I was over-simplifying it, my bad), but what you said isn't wright either.

You basically said nothing at all

+Vaibhav Gupta Because they're all biologists XD

iluan Hernandez yeah may be.

When the content of the talk is interesting and important...who cares about what they are wearing? ;)

alejapt i don't care (lol look at my profile pic) but thought it was interesting if look at ted events it costs $6000. so people are well dressed.