Discover Documentary #5 | Deep Sea

[MUSIC PLAYING] [PURRING] [GASPING] The world we live in is pretty weird It's filled with things you never see coming

Make America great again But most of the Earth's surface is ocean So what's going on down there? [MUSIC PLAYING] Museums Victoria has two collections filled with creatures from the deep– ichthyology, or fish, and marine invertebrates These collections are filled with creatures that rarely see the light of day And for deep sea animals, we mean that literally

Mel Mackenzie manages the marine invertebrates collection It's made up of specimens collected from the shallows to the deepest oceans Animals in marine environments, just like animals in terrestrial environments, are adapted to all sorts of different habitats The difference is, in the ocean, you've got to think about extra things like depth You're thinking about darkness

You're thinking about pressure And of course, you've got to breathe water Just because an invertebrate lacks a backbone doesn't mean it's not ambitious Many have adapted to life in the deep in extraordinary ways Sea cucumbers are actually my favourite animals

And my favourite of the sea cucumber is the sea pig Not maybe so pretty to look at here, but they're absolutely gorgeous when they're under the ocean It has a little feeding tentacles So it kind of is like a vacuum cleaner of the ocean So it picks up the food with its tentacles and feeds itself

And then it churns through those nutrients for all the other animals in the ocean Of course, when we're talking about oceans, there are plenty more fish in the sea Meet Martin Gomon, senior curator in ichthyology Some of the deep sea fish in here are the stuff of nightmares But they're real

Probably best known to many of the people as far as deep sea fishes go are the predators called deep sea anglerfishes Deep sea anglerfishes are probably best characterised by their enormous mouths filled with huge, fang-like teeth and the fishing rod tipped with a luminous lure [MUSIC PLAYING] When we think about the words "ocean" and "predator," one fish comes to mind But life and death are very different in the deep sea Meet the viperfish

This jar has one of the top-level predators in the deep sea The viperfish has some of the largest teeth of all of the primary predators in the deep sea One of the misperceptions that people have about the deep sea is that it's full of giant animals In reality, most of the animals that live in the deep sea are quite small It's said that we know more about the moon than the deep sea

And while these animals seem strange, the deep sea is actually the most common habitat on Earth Perhaps that makes us the weird ones [MUSIC PLAYING]

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