Two thirds of the worlds surface is covered with water. As humans, we live on the dry parts of the earth and know very little about the majority of our planet that is covered by water. There are billions of creatures in the sea of which we know little about. Jelly fish are among the most numerous and mysterious of the sea’s life forms. Scientist have been studying jellyfish for ages trying to unlock some of their amazing secrets. Here are just some of the things we have learned about jellyfish.
It appears that some jellyfish are immortal. Normally, a jellyfish starts life as a polyp which is it’s first phase of life. Later it enters it’s second phase of life called the medusa phase. The medusa phase is the one we normally identify as a common jellyfish. But there is one species of jellyfish the “Turritopsis nutricula” which has the ability to revert back to it’s polyp stage in times of stress. The cycle can go on forever.
It’s difficult to understand what jellyfish are since they don’t have brains. Jellyfish have nerve nets which sense changes in the environment and coordinate the animal’s responses.
Jellyfish can create clones of themselves. If a jellyfish is cut in two parts, the two parts will regenerate into two separate creatures. Going further, one jellyfish could potentially produce hundreds of copies of itself if it were to be cut into many pieces.
Researchers continue to study jellyfish for what they can teach us about underwater propulsion. Jellyfish move by using their umbrella shaped bodies to pulse in any direction while expending very little energy. Scientist are using what they have learned from jellyfish to create more efficient and versatile propulsion systems for future underwater vehicles.
There seems to be no limit of what we can learn from the jellyfish.