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Text N°. 1 Dolphins Dolphins are marine mammals that are related to whales and porpoises. A marine mammal is one that lives in the world’s oceans as well as in rivers and marshes. Dolphins are carnivores (meat eaters) and feed on fish, squid, and other marine life. They often swim together in groups called “pods”. They are thought to have powerful eyesight and hearing, but do not have a sense of smell. Dolphins come in different sizes. Some are smaller than the average person, but others, such as the orca, can be 30 feet long, or more than five times as long as the average person. Dolphins are thought to be very intelligent and communicate with each other using clicks and whistles. All dolphins are powerful swimmers. Have you ever seen a dolphin? Groups of dolphins can often be seen bobbing in and out waves close to the shoreline.
1. Marine mammals live _______. A) on land B) in the forest C) in the desert D) in the water 2. ______ are most closely related to the dolphin. A) Cats B) Whales C) Squid D) Sharks 3. Dolphins don not _______. A) have good hearing B) have good eyesight C) communicate D) have a sense of smell 4. Which of the following would a dolphin probably not eat? A) marine life B) squid C) plants D) fish 5. An Orca is ______. A) a little bit larger than an average person. B) smaller than an average person. C) much larger than an average person. D) about the same size as an average person. Text N°. 2 Florida Manatees The unmistakable Florida manatee is mostly grayish or brown, oftentimes with algae growing on its thick, wrinkled skin. It is perfectly adapted for life in tropical waters. The body of the Florida manatee is similar to that of a seal, and its face resembles the face of a walrus without the tusks. Manatees have specialized forelimb flippers that enable them to move through the water with great agility. The ma- natee’s flippers also enable it to grasp food and bring it to the mouth. Manatees have nostrils located at the tops of their heads for easy breathing. Nostrils also have tight - fit- ting flaps that keep water out when they’re underwater. Manatees have incredible lung capacity and can stay underwater for as long as 15 minutes. Their presence is often revealed by powerful gusts of air (breaths) at the surface of the water. Their powerful, flat tails help propel their massive bodies through the water. Florida manatees are typically ten feet in length and weigh over 1,000 pounds. The Florida manatee is actually a subspecies of the more widespread West Indian manatee. The Florida manatee summers through much of the East and Gulf Coasts. Individuals may wander as far north as Virginia and as far west as Louisiana in both fresh and salt water. In winter, manatees migrate to warm waters off the coasts of Florida and Georgia. Hundreds of manatees may congregate in winter near large cities such as Tampa and Fort Lauderdale, Florida. Manatees rarely survive in water that dips below 68 degrees Fahrenheit. Manatees are known as “gentle giants” and are purely herbivorous. Manatees eat vast amounts of aquatic plants. A manatee may eat as much as 15 percent of its body weight per day. Manatees are slow - moving animals. They are even slower to reproduce. Females become mature after five to nine years and have calves every two to five years. Young manatees nurse their young underwater and stay with their mothers for about two years.
Academia ADUNI Manatee populations have plummeted in America over the last few decades. While natural causes such as disease, red tide, and stress brought on by cold water have certainly had an impact on population, much of the manatee’s decline can be attributed to human activity. The destruction of the manatee’s wetland habitats for housing developments has been the primary cause of the animal’s decline. As humans populated southern Florida at an astonishing rate in the last few decades, they increasingly came into contact with manatees. Collisions with boats and lacerations inflicted by boat propellers resulted in the deaths of thousands of manatees. Pollution of coastal waters and the careless disposal of fishing lines and other objects into manatee waters exacerbated the problem. Today, however, strict laws have been implemented, making those who interfere with manatees subject to fines and even imprisonment. Many organizations have launched programs aimed at saving manatees and educating the public.
6. What often grows on the skin of a manatee? A) insects B) algae C) snails D) barnacles 7. What enables the manatee to move through the water with great agility? A) fins B) legs C) arms D) forelimb flippers 8. What best describes the word “agility”? A) Being able to move slowly B) Being able to move quickly C) Being able to move between obstacles D) Being able to move silently 9. Which of the following do manatees not do? A) Migrate B) Hibernate C) Eat 15 percent of their body weight per day D) Grasp food with their flippers 10. Where would you not find a manatee? A) river B) ocean C) Louisiana D) Michigan KEYS 1 - D 2 - B 3 - D 4 - C 5 - C 6 - B 7 - D 8 - C 9 - B 10 - D