* Stings: Jellyfish are famous for their stinging cells, called nematocysts. These contain a complex cocktail of toxins, including proteins, enzymes, and neurotoxins, which are used to paralyze prey and defend against predators.
* Fluorescent Proteins: Some jellyfish species possess fluorescent proteins, like green fluorescent protein (GFP), which are used for communication and possibly light-based defense mechanisms. These proteins have become invaluable tools for scientists studying cells and disease processes.
* Nervous System: Jellyfish have a simple nervous system, but it's still complex enough to coordinate their movements, sense their environment, and respond to stimuli. They use neurotransmitters like acetylcholine and dopamine, similar to more complex animals.
* Biochemistry of the Ocean: Jellyfish play a role in the ocean's complex food web. They have to regulate their salt balance, absorb nutrients, and even produce their own food through photosynthesis in some cases.
Overall, while not as intricate as the chemistry of higher animals, jellyfish possess a sophisticated suite of chemical processes that enable them to thrive in their marine environment.
