seaweed

/Tag: seaweed

Who were the Mapuche? South American history

By |2019-04-01T08:49:16-07:00September 9th, 2017|History|

Changos whale hunt, El Madano, ca. 1000 AD When did people first reach Chile? There were probably people living in Chile (a narrow strip of land in South America between the Andes Mountains and the Pacific Ocean) by around 12,000 BC. They came south with their dogs along the coast of South America, either walking or in [...]

Brazil’s early history – South America

By |2019-02-22T05:09:58-07:00September 8th, 2017|History, South America|

Venus of Santarem (Brazil, ca. 1400-1000 BC) When did people get to Brazil? The first people probably arrived on the Atlantic coast of South America about 15,000 BC. Probably a second wave of people followed them around 11,000 BC. People reach the Americas Brazil and colonization All our South America articles How did they get there? [...]

Inuit Life – Native Americans

By |2018-04-07T17:05:35-07:00August 9th, 2017|History, Native American|

Inuit carving of a person Inuit (INN-oo-it) people lived mainly by hunting seal and walrus and by fishing, and by gathering wild berries and roots like parsnips. They couldn't just eat fish because fish don't have enough fat in them, so they needed to catch seal too. They also gathered seaweed to eat. To hunt seal, people used little seal-skin boats called kayaks that [...]

Japanese food history

By |2019-03-22T06:30:25-07:00July 27th, 2017|Japan|

Japanese sushi The very earliest people who lived in Japan, starting about 40,000 years ago, lived mainly on fish caught from the sea, though they sometimes hunted local deer or other animals for their meat and they collected plenty of nuts and pears, too, and ate lots of seaweed with their fish. They picked sudachi fruit (like limes) and squeezed [...]

Proterozoic Eon – eukaryotes to worms

By |2018-04-21T11:56:39-07:00June 24th, 2017|Biology - Evolution, from cells to modern mammals, birds, and reptiles, Geology|

Two and a half billion years ago, the Archaean Eon ended and the Proterozoic Eon began. Trillions of prokaryote cells lived in Earth's oceans. Some of these cells could photosynthesize their energy from sunlight, water, and carbon dioxide. These photosynthesizing cells pooped out a lot of oxygen. By about 2.3 billion years ago, the iron [...]

What is seaweed? Plant evolution and biology

By |2018-04-16T10:36:48-07:00May 30th, 2017|Biology - Evolution, from cells to modern mammals, birds, and reptiles|

Seaweed in the ocean For the first two billion years of life on Earth, there were only one-celled creatures. But after early eukaryote cells started to reproduce by meiosis in addition to mitosis, about 1.4 billion years ago, they were able to evolve faster by mixing up their DNA with the DNA from other cells. They [...]

Eating seaweed – Biology activity – Science

By |2017-05-30T09:31:17-07:00May 30th, 2017|Biology - Evolution, from cells to modern mammals, birds, and reptiles|

A beach in Tunisia, in North Africa To find out more about seaweed, take a trip to the coast and go wading in the water. There is seaweed on pretty much any seashore, and you'll feel it winding around your feet as soon as you get in the water. There is also freshwater [...]