According to National Geographic, blue whales feed on tiny, shrimp-like organisms called krill. A blue whale can consume up to 4 tons of krill each day.Know More
In order to eat these tiny organisms, blue whales have a row of pleated plates, called baleen, attached to their upper jaws. When feeding, a blue whale swims into a large group of krill and opens its mouth, taking in a large amount of water. With its tongue, the whale forces the water out of its mouth, through the baleen plates, which act like a sieve, catching the krill. Blue whales spend the summer months feeding in cold, polar waters, and they travel great distances toward the Equator when winter approaches.
According to National Geographic, blue whales are the largest animals on Earth, able to reach lengths of up to 100 feet and weigh more than 200 tons. Its heart alone weighs as much as a car. Blue whale calves are born weighing 3 tons and, consuming only their mothers' milk, gain about 200 pounds each day during their first year. The average lifespan for a blue whale is 80 to 90 years. It is estimated that between 10,000 and 25,000 blue whales are still living in the wild as of 2014.Learn more about Zoology
The bald eagle's food chain consists of aquatic plants and diverse grass types as primary producers. Insects, mice, different sizes of fish, frogs and smaller birds occupy the primary, secondary and tertiary consumer roles. The bald eagle, having no real predator, resides at the top of its food chain.Full Answer >
Hyenas are apex predators that sit at the top of the food chain. They prey upon a number of herbivores, including gazelles, impalas, wildebeests and zebras. Few animals are capable of catching and killing healthy adult hyenas but lions, leopards, hunting dogs and other hyenas occasionally eat sick and young hyenas.Full Answer >
The food chain of a producer is the sun, the primary consumer, the secondary consumer and the decomposer. The producer uses the sun and nutrients in the soil to make food, and animals that consume it eventually die and fertilize the soil.Full Answer >
Caimans usually sit at the top of the food chain in their environment, only to be hunted by jaguars and sometimes by anacondas. Jaguars are large cats that can fight caimans in and out of the water, while anacondas can hunt small caimans but usually lose to the large ones.Full Answer >