a lot
None, the deep sea is in space
Yes there are many unidentified creatures in the sea. There are parts of the sea that are so dark that only creatures with special adaptations can live there. There are also parts of the sea that are so deep that we cannot go there. The pressure collapses submarines.
There are many Antarctic sea creatures. Five of these amaizng creatures are an Antarctic octopus, sea spiders, tunicates, marine woodlice, sea lemons. Also Polarbears are not sea animals but howver they od swim in the cold waters of Antarctica
Many sea creatures live in the North Sea. The animals include bearded harp, pacific oysters, bottlenose dolphins, phytoplanktons, salmon,and mudflats.
Some sea creatures have ansetors of dinosaurs
Phytoplankton is the small plant life that whales and some other sea life eat. Many other forms of sea creatures eat fish and other sea creatures.
If you mean, "are all under water creatures, sea creatures?" then no. The term SEA is for the ocean and there also can be creatures in freshwater. Also some creatures that live in water such as some snakes and sea turtles come out of the water every so often, so they are no total sea/water creatures. Fish are underwater creatures though.
In prehistoric times Florida was underwater in the Siluarian Sea so you would find many sea creatures back then.
loads, more than we can count.
No there are not any new creatures at miami bech
all the sea creatures are on the bottom of the ocean love dakotah