animal national geographics

Agriculture—the cultivating of home plants—allowed fewer people to offer more meals. The stability that came with common, predictable food production led to increased inhabitants density. People had been able to do greater than hunt for every day’s food—they may travel, trade, and communicate.

People collected and planted the seeds of untamed crops. They made sure the plants had as much water as they needed to grow, and planted them in areas with the correct amount of sun. Weeks or months later, when the plants blossomed, people harvested the food crops. Students watch movies and talk about ecological relationships with a concentrate on observing symbiosis. Then they classify the ecological relationships they observe as mutualism, commensalism, and parasitism. the method of adapting wild plants or animals for human use.

The world’s first villages and cities were constructed near fields of domesticated plants. Domesticated animals can look very totally different from their wild ancestors. For instance, early wild chickens weighed about two pounds. But over hundreds of years of domestication, they’ve been bred to be bigger.

Their capability to withstand illness and survive in difficult climates can also be useful. Goats were probably the first animals to be domesticated, adopted closely by sheep. In Southeast Asia, chickens additionally were domesticated about 10,000 years in the past. Later, individuals began domesticating bigger animals, corresponding to oxen or horses, for plowing and transportation.

animal national geographics

Wild chickens only hatched a small variety of eggs once a year, while domestic chickens commonly lay 200 or extra eggs annually. Throughout historical past, folks have bred domesticated animals to promote sure traits. Domestic animals are chosen for their ability to breed in captivity and for their calm temperament.