Welcome! This site is for students to practice their English and keep up to date with environmental issues.

You can find a mixture of reading, crosswords, videos and short English lessons: these will normally be vocabulary, but I may also treat you to some grammar!

There are now over 260 lessons on this blog. Look through the Blog archive, Post labels and Popular Posts to find what you want.

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''Let nature be your teacher''
William Wordsworth, poet, 1770-1850

''Joy in looking and comprehending is nature's most beautiful gift''
Albert Einstein, physicist, 1879-1955

''... to find the word, or words, by which [an] idea may be most fitly and aptly expressed''
P.M. Roget, lexicographer, 1779-1869

Wednesday, 29 January 2014

The reintroduction of wolves in Yellowstone

Level: Intermediate / B1

Please click the 'Print Friendly' icon at the bottom of the page if you want to print this exercise.

Here is another great video from the BBC's Power of Nature series. Called Wolves: Forest Stewards it looks at the reintroduction of wolves in Yellowstone National Park.

Watch the video (four minutes long) and read the text with it, then answer the following questions:
1) When did wolves become extinct in Yellowstone?
2) Why were wolves reintroduced to the Park?
3) Which tree species started coming back?
4) What effect did the returning trees have?
5) What other species returned?

Answers below!


1) In the 1920s / Over 70 years ago
2) To manage the rising population of Elk (Cervus canadensis)
Note: This is the American Elk, similar to the European Red Deer (Cervus elaphus) . In Europe the Elk is what Americans call Moose (Alces alces)
3) Cottonwoods, Aspens, Poplars.
4) They stabilised the river banks, slowing and cleaning the water.
5) Beavers.

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