prueba Sandra Cámara Boy finds 10,000-year-old arrowhead on New Jersey beach Noah Cordle, 10, found a 10,000-year-old Paleoindian arrow point on a New Jersey beach.Kelly-Jane Cotter/ Asbury Park Press BEACH HAVEN, N.J. – A boy playing on a New Jersey beach has unearthed a 10,000-year-old arrowhead possibly used by ancient Native Americans to spear fish or hunt mastodon. Noah Cordle, 10, and his family were vacationing on the Long Beach Island last week when he found it at the edge of the surf in the community of Beach Haven. It was sharp enough that it hurt as it hit his leg. The Springfield, Virginia family contacted the Archaeological Society of New Jersey to check it out. The president, Greg Lattanzi, who is also a curator at the New Jersey State Museum in Trenton, tells the Asbury Park Press that the arrow point probably dates back 8,000 to 11,000 years. "I was basically blown away," he said. Lattanzi says his museum has about two dozen of these Paleoindian points, but most were found by professionals at archeological digs.
Facts About Elephants | African Elephants & Asian Elephants Elephants are the largest land animals on Earth. They have characteristic long noses, or trunks; large, floppy ears; and wide, thick legs. There are two species of elephant. The Asian elephant and the African elephant live on separate continents and have many unique features. There are several subspecies that belong to one or the other of these two main species, though there is disagreement over just how many subspecies there are. African elephants are the larger of the two species. African elephants live in sub-Saharan Africa, the rain forests of Central and West Africa and the Sahel desert in Mali. Elephants eat grasses, roots, fruit and bark. An elephant has an appetite that matches its size. A group of elephants is called a herd. Elephants also have certain rules. Male elephants are called bulls and females are called cows. A baby elephant is called a calf. The taxonomy of elephants, according to the Integrated Taxonomic Information System (ITIS), is:
KDE Santa Barbara Welcome to the Kids Do Ecology Biomes Pages! Aquatic Biomes | Terrestrial Biomes | GAMES! What are biomes? Biomes are regions of the world with similar climate (weather, temperature) animals and plants. Would you like to know what the weather is like in different biomes around the world? How many biomes are there? Games Links to more information: Kids Konnect: Biomes Enchanted Learning: Biomes ThinkQuest: Biomes Major Biomes of the World NASA - Mission: Biomes World Biomes Back to the top Back to Biomes Index práctica peartrees juan Before Civilization - Ancient Civilizations for Kids Early humans showed another major sign of intelligence about 35,000 years ago. Humans began to draw on the walls of caves—probably other places too, but it has been preserved in caves. Cave paintings often depict hunting scenes. This is some of the first artwork and also an early attempt at written communication. Development of Agriculture The most important development in human history is the development agriculture, which is another word for farming. Corn is a good example of domestication. Humans have lived in Africa longer than anywhere else, but many African societies adopted farming much later than other parts of the world. The soil near rivers is very fertile—or full of plant food and good for growing. Agriculture Brings Changes Farming had other effects on lifestyle and society. The society that farming created forced people to interact in new ways. The world was rapidly changing and people finally had time to settle down and think about the world around them. A New Way of Life
Difference Between African and Asian Elephants African vs Asian Elephants African and Asian elephants are quite different from one another and they look similar only from a distance. The first difference that you note is that of the ears. The ears of the African elephant are much larger reaching up and over the neck looking quite a bit like the map of Africa. The Asian elephants’ ears are on the other hand are smaller and are shaped like the map of India. The African elephant is much larger than the Asian one with the bull attaining a full height of 4 meters to the Asian counterpart’s 3.5 meters. That apart the skin of the African elephant has more wrinkles than the Asian one. When it comes to trunks there are some major differences over there as well. The highest point of an African elephant is on the shoulder, while that of the Asian one is on the back. The African elephants have tusks among both the males and females of the species, whereas it is only the male of the Asian species that sports tusks. Search DifferenceBetween.net :
Biomes of the World | Biomes Biomes are the major regional groupings of plants and animals discernible at a global scale. Their distribution patterns are strongly correlated with regional climate patterns and identified according to the climax vegetation type. However, a biome is composed not only of the climax vegetation, but also of associated successional communities, persistent subclimax communities, fauna, and soils. The biome concept embraces the idea of community, of interaction among vegetation, animal populations, and soil. A biome (also called a biotic area) may be defined as a major region of distinctive plant and animal groups well adapted to the physical environment of its distribution area. To understand the nature of the earth’s major biomes, one needs to learn for each: The global distribution pattern: Where each biome is found and how each varies geographically.
practica pealtres irene pulido Ancient Man Had Neanderthal Great-Great Grandfather A modern human who lived in what is now Romania between 37,000 and 42,000 years ago had at least one Neanderthal ancestor as little as four generations back—which is to say, a great-great-grandparent. Scientists have known for at least half a decade that living humans bear traces of Neanderthal blood—or more specifically, Neanderthal DNA. Just when and where our ancestors bred with their now-extinct cousins, however, has been tricky to pin down until now. “I could hardly believe that we were lucky enough to hit upon an individual like this,” says study co-author Svante Pääbo of the Max Planck Institute for Evolutionary Anthropology in Leipzig. The specimen, known as Oase 1, consists only of a male jawbone, and from the moment it was discovered in 2002 its shape suggested that it might belong to a hybrid between Homo sapiens and Neanderthal. That difference is more significant than it might seem.