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Aquatic Life Evolution and Adaptations
Transcript of Aquatic Life Evolution and Adaptations
Pakicetidae 50 million years ago.
Cetaceans are aquatic-based mammals including whales, dolphins and porpoises. Though they all evolved in different ways, they share a common ancestor: terrestrial ungulates (hoofed animals). The evolution of the whale in particular will now be shown.
Remingtonocetidae 49 - 43 million years ago.
Early echolocation 33 - 14 million years ago.
The modern baleen whale.
Damn, those are some sleek whales! Marvel at the relevance.
Basilosauridae and Dorudontinae 41-35 million years ago
Ambulocetidae 49 million years ago.
Protocetidae 48 - 35 million years ago.
This video depicts all the adaptations between terrestrial and aquatic.
What are crustaceans? Scary sea spiders? Sorry, they're insects of the sea. They’re herbivores. Simple creatures that really haven’t changed for many years.
They’ve been around for little over 400 million years. Crustaceans live in the water (besides for the occasional land crab).
Adaptations: Hard-shell for organ protection. Crabs eyes are on eyestalks… they see EVERYTHING. Water helps detect prey/predators.
Sad Crab Diary: The disturbing life of a crustacean. Food is scarce. Fishermen. Swimmers at a beach. Slightly wet environment. They’ve survived for a long time, they must be doing something right.
For a start coral is rather unique as it passes on its genetic adaptations to its children straight away.
Here are a few examples:
Corals have adapted to create their own sunscreen meaning they do not bleach as easily.
Some do not require a male and female coral.
They can grow in a quick war known as branching or a slower way which makes them a lot tougher called mounding.
Corals can be poisons which can cause multiple severe effects often like you are hallucinating.
REMEMBER CORAL IS ACTUALLY MULTIPLE ORGANISMS LIVING IN A MICRO COMMUNITY, NOT A PLANT.
Every life form inhabiting the ocean, from whales to coral is often the result of millions of years in which the life form drifts from species to species, evolving and adapting to their ever-changing environments. It is through this adaptive process, we can see the diverse ecosystems residing within the blue. Now let's see some whales...