Marine Biology unlocks the secrets of the sea. The best way to master Marine Biology

is to learn the anatomy of the animals and how they have evolved in order to survive.

Marine Biology course



Sea Slugs Golden Hermit crab

Nudibranchs such as this red and purple Aeolid have developed extremely specialised lifestyles.

The dark pink tips of the cerrata shown here contain stinging cells which they eat. The trick they use is to eat immature stinging cells which do not fire. These stinging cells are transported to the tips of the cerrata where they mature and develop the ability to sting. As we uncover more secrets of marine life, we get a better appreciation of how they survive.

This Hermit Crab is found in the tropics especially in the Phillipines. Its larvae have drifted down on the plankton. Tiny hairs all over its body are tactile and chemosensory. They can detect water movements such as pressure waves as well as smell food. Nearly All crustaceans have eyes on stalks and two sets of antennae. The front set of antennae is for taste and the rear set is for feeling.

In hermit crabs, the soft abdomen is spiralled to the left to fit into the spiral of the shell. It uses hooks to hold onto the shell.

Soft Coral Garden silvertip
Every lifeform in the ocean has spent 3,400 million of years developing the most amazing ways to survive. Learning about these secret lifestyles is to unlock some of the secrets of the sea. In my Marine Biology course, we explore each of the main lifeforms and see how they are built and how they live and survive in the sea.

Marine Biology of sharks