Today is World Oceans Day, a global day of ocean celebration and collaboration for a better future. A healthy world ocean is critical to our survival. Together, let’s honor, help protect, and conserve the world’s oceans!
1. While the Earth’s oceans are known as five separate entities, there is really only one ocean.
2. The ocean contains upwards of 99% of the world’s biosphere, that is, the spaces and places where life exists.
3. Jellyfish are soft because they are 95% water and are mostly made of a translucent gel-like substance called mesoglea. With such delicate bodies, jellyfish rely on thousands of venom-containing stinging cells called cnidocytes for protection and prey capture.
4. Plastics & litter that make their way into our oceans are swiftly carried by currents, ultimately winding up in huge circulating ocean systems called gyres. The earth has five gyres that act as gathering points, but the largest of all is known as the ‘Great Pacific Garbage Patch’ and has grown so immense that the oceanic garbage patch can shift from around the size of Texas, to something the size of the United States.
5.The 200 or so species of octopuses are mollusks belonging to the order Cephalopoda, Greek for ‘head-feet’. Those heads contain impressively large brains, with a brain to body ratio similar to that of other intelligent animals, and a complex nervous system with about as many neurons as that of a dog.
6. Some lucky animals are naturally endowed with bioluminescence, or the ability to create light. The firefly, the anglerfish, and a few more surprising creatures use this ability in many ways, including survival, hunting, and mating.
Welcome to Earth Week on TED-Ed Tumblr! We’ll be sharing ways for you to be a more considerate resident of Planet Earth all week (that you can apply…all year!)
Nearly one third of our food ends up in the trash can. That’s an estimated 1.3 billion tons. America alone spends an estimate 165 billion dollars a year managing food waste. We’re wasting food, energy, and money.
But there’s another way! More and more people, even city dwellers, are taking to composting - it saves on landfill space, betters air quality, and if you have a green thumb - provides you with free soil! One method is vermicomposting, and to learn more about that, you can watch the TED-Ed lesson Vermicomposting: How worms can reduce our waste - Matthew Ross. But if worms aren’t your style, check out some simple DIY compost methods here and here and here.
Finally, if you simply have no space for soil, check out your local farm markets - chances are you can freeze your compost or keep it in a small countertop bin, and drop it off every week.
Love the Earth, and the Earth will love you back! Happy Earth Week!