Home
Reading

Read an Academic Passage

New TOEFL Reading / Read an Academic Passage / Read an Academic Passage

Read an Academic Passage Test #020

Read an Academic Passage

Animal Camouflage and Adaptation

Camouflage is a form of adaptation that allows animals to blend in with their environment, a crucial survival mechanism for both predators and prey. This ability to remain unnoticed helps prey avoid detection by those hunting them, while it allows predators to conceal themselves as they stalk their next meal. There are several distinct types of camouflage. The most common is crypsis, or background matching, where an animal's coloration mimics its surroundings. For example, the sandy color of a desert lizard helps it blend in with the sand, and the mottled pattern of a moth's wings allows it to rest undetected on tree bark.

A more complex form of camouflage is mimicry, where an animal evolves to resemble another object or creature. Some insects, for instance, have evolved to look like sticks or leaves, making them difficult for predators to spot. Another type is disruptive coloration, which uses strongly contrasting patterns, like stripes or spots, to break up an animal's body outline. The stripes of a zebra, for example, can confuse a predator in a herd, making it difficult to single out an individual target. These patterns disguise the animal's true shape and size against the background.

The effectiveness of an animal's camouflage often depends on its behavior. An animal must remain still to take full advantage of its coloration, as movement can easily give away its position. Many camouflaged animals are nocturnal, using the darkness as an additional layer of concealment. The evolution of these complex adaptations is a testament to the power of natural selection. Over countless generations, individuals with more effective camouflage were more likely to survive and reproduce, passing on their advantageous traits. This ongoing evolutionary arms race between predator and prey has resulted in the incredible diversity of camouflage seen in the natural world today.

1. What is the passage mainly about?
A) The hunting techniques of various predators
B) The specific adaptations of nocturnal animals
C) Different types of camouflage as a survival strategy
D) The evolutionary history of the zebra
2. The word 'disguise' in the passage is closest in meaning to
A) reveal
B) change
C) hide
D) enlarge
3. What can be inferred about an animal that uses crypsis?
A) It is always a predator.
B) It likely lives in a very colorful environment.
C) Its coloration is similar to its natural habitat.
D) It must move constantly to stay hidden.
4. According to the passage, what is the purpose of a zebra's stripes?
A) To attract mates during breeding season
B) To signal danger to other zebras in the herd
C) To make it harder for a predator to focus on one animal
D) To help the zebra blend in with a sandy desert
5. What is the relationship between the first and second paragraphs?
A) The second paragraph contradicts the definition given in the first.
B) The first paragraph introduces a concept, and the second provides specific types.
C) The second paragraph focuses on predators, while the first focuses on prey.
D) The first paragraph discusses behavior, while the second discusses coloration.

Highlights

ID: #io5654136874

Tags

New TOEFL