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Ch 3: Extinct & Endangered Animals

About This Chapter

Review extinct and endangered animals by checking out our helpful chapter. These lessons and quizzes are accessible on your mobile phone, tablet or computer for easy, flexible studying 24 hours a day.

Extinct & Endangered Animals - Chapter Summary

Our informative chapter covers endangered and extinct animals. The lessons examine the habitats and characteristics of a number of animals, such as Steller's sea cow and the sea mink, as well as assessing the reasons for their extinction. These easy-to-follow, self-paced lessons help you study for a test, catch up or just get ahead of the class. Each lesson is followed by a short multiple-choice quiz that makes a great test prep exercise or can help you check if you're ready to move on to other topics. Once you complete this chapter, you should be able to:

  • Explain where plesiosauria lived
  • Give some facts about Steller's sea cow and the sea mink
  • Describe why West African black rhinos are extinct
  • Identify some extinct arachnids
  • Detail some of the characteristics of the archaeopteryx

23 Lessons in Chapter 3: Extinct & Endangered Animals
Test your knowledge with a 30-question chapter practice test
Plesiosauria: Definition, Habitat & Facts

1. Plesiosauria: Definition, Habitat & Facts

Plesiosauria were a group of large marine reptiles. In this lesson, we'll look at their habitat, and some interesting facts that scientists have learned from looking at fossils.

Steller's Sea Cow: Habitat, Facts & Extinction

2. Steller's Sea Cow: Habitat, Facts & Extinction

In this lesson you will learn about Steller's Sea Cow, an extinct cousin of the manatee. This lesson includes information about its habitat, some interesting facts, and why it went extinct.

Sea Mink: Facts & Extinction

3. Sea Mink: Facts & Extinction

While there are several living species of mink, there is one that is extinct. In this lesson you will learn about the sea mink, including some facts about its life and why it went extinct.

Why are West African Black Rhinos Extinct?

4. Why are West African Black Rhinos Extinct?

The West African black rhino is one of the more recent species to go extinct. In this lesson, we will discuss the main causes for their extinction, especially poaching.

Extinct Arachnids: Plesiosiro, Phalangiotarbi, Trigonotarbida & Uraraneida

5. Extinct Arachnids: Plesiosiro, Phalangiotarbi, Trigonotarbida & Uraraneida

Thinking and talking about spiders sends chills through many people. Scientists have discovered fascinating information about many types of extinct arachnids. In this lesson, we will examine four widely studied extinct arachnids.

Archaeopteryx: Definition, Facts & Characteristics

6. Archaeopteryx: Definition, Facts & Characteristics

In this lesson, we'll talk about what dinosaurs have in common with birds. We'll then introduce Archaeopteryx, which many people consider the missing link between dinosaurs and birds.

Why is the Cross River Gorilla Endangered?

7. Why is the Cross River Gorilla Endangered?

In this lesson, we'll be learning about the rare cross river gorilla. We'll cover the main reasons for its endangerment including poaching, habitat destruction, and loss of genetic diversity.

Why are Eastern Lowland Gorillas Endangered?

8. Why are Eastern Lowland Gorillas Endangered?

Eastern lowland gorillas are listed as critically endangered by the International Union for the Conservation of Nature. In this lesson we'll look at the reasons behind their status.

Why are Mountain Gorillas Endangered? - Population & Conservation

9. Why are Mountain Gorillas Endangered? - Population & Conservation

In this lesson, we'll look at the reasons the mountain gorilla, a subspecies of eastern gorilla, is endangered. You'll also learn about its current population and ongoing conservation efforts.

Why is the Bornean Orangutan Endangered?

10. Why is the Bornean Orangutan Endangered?

In this lesson, we'll be learning about the critically endangered Bornean orangutan. We'll cover four main reasons it's endangered including habitat loss and degradation, the illegal wildlife trade, human conflict, and poaching.

Why are the Sumatran Orangutan Endangered? - Population & Conservation

11. Why are the Sumatran Orangutan Endangered? - Population & Conservation

In this lesson, you'll learn about the major reasons the Sumatran orangutan is endangered. We'll also look at their current population, and some much-needed conservation efforts.

Extinct Apes: Lufengpithecus, Sivapithecus & Anoiapithecus

12. Extinct Apes: Lufengpithecus, Sivapithecus & Anoiapithecus

Many species that have lived on Earth throughout time are now extinct. Learning about these extinct organisms provides valuable information for scientists regarding the puzzle pieces of evolutionary history. In this lesson, we will learn about three types of extinct apes.

Extinct Primates: Chororapithecus, Pierolapithecus & Samburupithecus

13. Extinct Primates: Chororapithecus, Pierolapithecus & Samburupithecus

While monkeys, lemurs and apes are primates you are familiar with you probably don't know much about some of the extinct primates. This lesson will look to change that, highlighting three extinct primates.

Red-Ruffed Lemur: Taxonomy, Facts & Endangerment

14. Red-Ruffed Lemur: Taxonomy, Facts & Endangerment

In this lesson you'll learn about one of the two ruffed lemur species: the red-ruffed lemur. We'll look at its taxonomy as well as some interesting facts, and why it is endangered.

Are Marmosets Endangered? - Diseases, Predators & Adaptations

15. Are Marmosets Endangered? - Diseases, Predators & Adaptations

This lesson is going to define marmosets. Then you'll learn if they're endangered. Finally, we'll go over the numerous predators, diseases, and adaptations these monkeys have.

Are Tamarins Endangered? - Populations & Conservation

16. Are Tamarins Endangered? - Populations & Conservation

This lesson is going to go over a few facets related to tamarins. You'll learn what they are, if they're endangered, and what conservation issues surround these animals.

Are Squirrel Monkeys Endangered? - Adaptations & Predators

17. Are Squirrel Monkeys Endangered? - Adaptations & Predators

In this lesson you'll learn about the endangered species status of squirrel monkeys. We will also look at some adaptations squirrel monkeys have, as well as their natural predators.

Are Spider Monkeys Endangered? - Population & Predators

18. Are Spider Monkeys Endangered? - Population & Predators

This lesson goes over spider monkeys. You'll learn about their characteristics, their predators, as well as their population status and reasons for their decline.

Brown Spider Monkey: Facts, Habitat & Endangerment

19. Brown Spider Monkey: Facts, Habitat & Endangerment

What exactly are brown spider monkeys? Where do they live, and are they endangered? If you are looking for the answers to these questions, or if you just like to read about awesome animals, look no further.

Warthogs: Diet & Habitat

20. Warthogs: Diet & Habitat

Warthogs are quite an adaptable creature. In this lesson, we'll take a look at the foods they eat as well as their preferred habitat and typical geographic range.

Black Bears: Habitat & Diet

21. Black Bears: Habitat & Diet

Black bears are the most plentiful bears in North America, but how much do you know about them? This lesson will explore the habitat and diet of this 'American bear.'

Brown Bears: Habitat & Diet

22. Brown Bears: Habitat & Diet

What exactly are brown bears? Are they as dangerous as movies portray them? Where do they live and what do they eat. If you are curious about these questions, read on. We've got just what you're looking for.

Brown Bears vs. Grizzly Bears

23. Brown Bears vs. Grizzly Bears

You've heard of brown bears, but have you heard of grizzly bears? Or Kodiak bears? So many names for the same species! This lesson will break down the reasons for the numerous names.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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