frogs

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8 09, 2017

South American environment

By |2018-04-19T15:03:07-07:00September 8th, 2017|Environment, South America|0 Comments

The Andes mountains run down the Pacific side of South America South America is a long, narrow continent running from the equator down nearly to the South Pole. So the north part of South America, near the equator, is generally hot and wet. In the south part of South America, near the South Pole, [...]

24 08, 2017

Moses and Egypt – Bible stories

By |2018-05-22T23:49:22-07:00August 24th, 2017|Africa, Religion, West Asia|0 Comments

The Pharaoh's daughter picks Moses up out of his basket (synagogue at Dura Europos, Syria, 200s AD) The Book of Exodus According to the Book of Exodus in the Bible ("Exodus" means leaving, because this is the book about the Jews leaving Egypt), the Jews did very well in Egypt after Joseph brought them there. (More about [...]

14 08, 2017

Emily Dickinson – American poetry

By |2018-04-24T10:41:38-07:00August 14th, 2017|Literature, North America|0 Comments

Emily Dickinson I'm Nobody (1891) I'm nobody! Who are you? Are you nobody, too? Then there's a pair of us--don't tell! They'd banish us, you know. How dreary to be somebody! How public, like a frog To tell your name the livelong day To an admiring bog! American Poetry Project American Literature Tom [...]

9 07, 2017

Who was Aristophanes? Greek playwright

By |2019-02-03T13:56:27-07:00July 9th, 2017|Greeks, History|0 Comments

Aristophanes: Greek krater bowl for mixing water and wine, with a scene from a comedy on it (Probably the Tarpoley Painter, about 400 BC) Political comedy Aristophanes (arr-iss-TA-fa-knees) lived in Athens, in ancient Greece. He lived about the same time as another playwright, Euripides. That was about 450-388 BC. Athenian democracy Who was Euripides? [...]

23 06, 2017

Carboniferous Period – Geology

By |2019-02-28T09:47:59-07:00June 23rd, 2017|Geology|0 Comments

Dragonfly When was the Carboniferous period? With the end of the Devonian period about 359 million years ago, the Carboniferous period got started. More about the Devonian Quick summary of geological eras All our geology articles What was the Earth like then? Most of the land on Earth was warm and swampy, which [...]

29 05, 2017

Eggs – Evolution and Biology

By |2019-05-24T11:37:23-07:00May 29th, 2017|Biology|0 Comments

Fish eggs: Egg evolution starts with soft eggs like these When did the first eggs evolve? The earliest living creatures made babies by dividing themselves in half, so that one cell became two cells. But about 1.4 billion years ago, some creatures with more than one cell began to develop specialized cells. These [...]

28 05, 2017

Evolution of bones – Skeletons and Biology

By |2019-09-13T19:11:53-07:00May 28th, 2017|Biology|2 Comments

A fish skeleton Before there were bones One-celled animals don't have any support system that holds them in a certain shape. Plants do have a support system, but it's the cellulose in the cell wall of each cell, rather than bones. What are arthropods? The Proterozoic eon All our biology articles Early multi-celled [...]

27 05, 2017

How do animals breathe? Respiration, Evolution, Biology

By |2018-04-21T11:56:44-07:00May 27th, 2017|Biology|0 Comments

Fish gills The first cells, which evolved about 3.8 billion years ago, needed carbon dioxide to live and not oxygen. They needed the carbon dioxide to help them break down molecules to get energy out of them, and they were able to get the carbon dioxide they needed from the oceans they lived [...]

27 05, 2017

Reproductive System – Evolution and Biology

By |2018-04-16T08:57:39-07:00May 27th, 2017|Biology|0 Comments

Reproduction: Hydra budding new hydras RNA and DNA molecules The first form of reproduction began about four billion years ago, when first RNA molecules and then DNA molecules began to make new copies of themselves by letting amino acids hook on to the parent molecule and then splitting them off. All reproduction since then [...]

26 05, 2017

What are intestines? Evolution and Digestion

By |2019-09-21T15:05:41-07:00May 26th, 2017|Biology|0 Comments

Whale intestines (from Medicine Chest) When did intestines evolve? The first animals to have anything like an intestine evolved around 548 million years ago. These were roundworms, just a few millimeters long. Roundworms had just a simple tube running from their mouth to their anus - no stomach in the middle. What's a [...]