
February 12, 2008
TV Programs Worth Watching
February 04, 2008
The Snowy Owl
AECP A1 Assignment #2- Summary & Quotation
The Snowy owl is one of the biggest owls in the world and also the biggest bird in the Arctic area. Its length is 21-26 inches, but when it spans its wings, it could be 60-65 inches. The female owl’s body is about 20% bigger than the male’s. Although most of the owls go out for searching prey at night, the snowy owls always do that during the daytime. Their sharp claws called talons and eyesight help them to catch the lemmings and other kinds of mice for main food easily, and sometimes they eat rabbits and birds.
However, during the long and extremely cold winter in the Arctic area, it’s too hard for them to find enough food. The Wildlife Fact File (1991) stated, “The snowy owl is capable of fasting up to 40 days at a time. It survives on the thick deposits of fat under its skin” (p. 3), or they would migrate to the southern places, even to the Caribbean Sea. In the article, they indicated “they have long been rare in Europe, but a careful protection program enabled one pair to breed successfully in Scotland. In eight seasons, they had borne 23 healthy chicks” (Wildlife Fact File, 1991, p. 3).
Every May to September, the female owls that are more than two years old can lay one egg. It takes about one month to hatch the eggs; then the chicks can break the shells by themselves and stay with their parents about one and a half months before they have the ability to take care of themselves. The article says, “The owlets hatch after a 30-day incubation period, using a temporary ‘egg tooth’ to crack through their shells. At hatching, they are covered with thin, white down, which is soon replaced by a coat of sooty, black down. At 43-50 days, they can fly. After 60 days, they are able to hunt” (Wildlife Fact File, 1991, p. 2). The life-span of the owls can be up to fifteen years; on the other hand, if they are raised by humans, their life-span can be up to twenty-eight years, almost twice longer than life in the wild.
*Reference
Wildlife Fact File. (1994). Snowy owl. (Card 11, Group2: Birds), 1-4.
February 03, 2008
The Hairy Mammoth
AECP A1 assignment #3-Summary and Quotation
ps. I put it & "Snowy Owl" here because I love them and hope I did a good job in summary! Ha!
The hairy mammoths are the biggest elephants in the Earth’s history, but they all were extinct ten thousand years ago. The average hairy mammoth was 12 feet tall, and its weight could reach 13,225 to 15,450 pounds. The scientists discovered them in the Arctic area, such as “Siberia, northern Europe, northern Eurasia, and North America” (Wildlife Fact File, 1991, p. 4) and found there are many similarities between them and the modern elephants. By studying the modern elephants and the fossils of mammoths they have found, scientists can rebuild the amazing creatures now.
The hairy mammoths were vegetarians; therefore, they had big flat teeth to chew the plant that had a lot of fibers. They lived in one of the severest cold areas in the world, so they had to eat a large amount of food to maintain their fatty body and had hair to keep them warm. The Wildlife Fact File (1991) stated, “Their fat, which was especially thick around the shoulders, was used as an emergency store of food” (p. 3). Although they were the biggest animals at that time, they still had some predators, such as humans, Saber-toothed tigers, and wolves. Humans hunted the mammoths with spears and axes for food and clothing. The scientists guessed that only humans and wolf groups could hurt the adult mammoths because they hunted the mammoths in groups or with tools; on the other hand, the Saber-toothed tigers would prey only on the young mammoths.
The female mammoths could be pregnant after they were ten to twelve years old; furthermore, it took twenty-two months to gestate and just have a newborn from a conception. They liked to live together; thus, the pregnant and young mammoths could get good protection from other adults, and their lifespan could be up to sixty years.
*Reference
Wildlife Fact File. (1991). Hairy Mammoth. (Card 4, Group7: Prehistoric & Extinct Animals), 1-4.