What does an octopus eat? For a creature with a brain in each arm, whatever’s within reach – the Conversation
The octopus is one of the coolest animals in the sea. For starters, they are invertebrates. That means they don’t have backbones like humans, lions, turtles and birds.
That may sound unusual, but actually, nearly all animals on Earth are invertebrates – about 97%…What octopuses eat depends on what species they are and where they live ..
Why does nature create patterns? – the Conversation
The reason patterns often appear in nature is simple: The same basic physical or chemical processes occur in many patterned substances and organisms as they form. Whether in plants and animals or rocks, foams and ice crystals, the intricate patterns that happen in nature come down to what’s happening at the level of atoms and molecules…
How deep is the ocean? – the Conversation
If you wanted to measure the depth of a pool or lake, you could tie a weight to a string, lower it to the bottom, then pull it up and measure the wet part of the string. In the ocean you would need a rope thousands of feet long. In 1872 the HMS Challenger, a British Navy ship, set sail to learn about the ocean, including its depth. It carried 181 miles (291 kilometers) of rope…
Where does beach sand come from? – the Conversation
Question from Sly M., age 6, Cambridge, Massachusetts…
There’s more to beach sand than meets the eye. It has stories to tell about the land, and an epic journey to the sea. That’s because mountains end their lives as sand on beaches….
Curious Kids: If plastic comes from oil and gas, which come originally from plants, why isn’t it biodegradable? – the Conversation
Question from Neerupama, age 11, Delhi, India..
To better understand why plastics don’t biodegrade, let’s start with how plastics are made and how biodegradation works…