Question 2 of 21

The U.S. Fish and Wildlife Service has been attempting to reintroduce which subspecies of gray wolf to the U.S.?

... The Mexican gray wolf had not been seen in the American wilderness since 1970 when the reintroduction program started in 1998. The joint venture between the U.S. and Mexico has had some success, with 40 to 60 wolves reported in the wild. These results are less than anticipated, however, so the program began a revision process in April 2012.

Question 3 of 21

What was the first mammal legally reintroduced into the wilds of Great Britain?

... In 2009, the Scottish Beaver Trial -- an effort to reintroduce beavers to Scotland -- brought the European beaver to Knapdale Forest in western Scotland. The national government permitted the Royal Zoological Society of Scotland and the Scottish Wildlife Trust to begin these efforts.

Question 4 of 21

When lynx were first reintroduced into Colorado in 1999, the initial group died from _______.

... The first four lynx set free in Colorado starved to death, although the population of their favorite prey, snowshoe hares, was fine. Almost half of the next group of 41 lynx died from a variety of causes, including predators and disease. Survival rates of lynx released subsequently have been higher.

Question 5 of 21

In 2000, several California condors reintroduced to Arizona died and many became ill due to ________.

... Out of 21 condors, five adults died of lead poisoning; the rest had symptoms of the medical condition. Condors are scavengers and eat only animal carcasses, and it is theorized that shotgun pellets contaminated the birds' food.

Question 6 of 21

During the 21st century, an effort is being made to reintroduce the whooping crane to the U.S. As part of this process, young cranes are trained to migrate by _______.

... "Operation Migration" trains cranes to follow ultralight aircraft on their first migratory trip to Florida.

Question 7 of 21

Wolves are under consideration for reintroduction to Great Britain to help control the deer population naturally. Wolves have not been in the area since the ______ century.

... By the early 18th century, wolves were killed off in Great Britain, due to the efforts of hunters and landowners.

Question 8 of 21

India is considering reintroducing cheetahs into the country. Among the remaining animals worldwide, healthy cheetahs are difficult to find for this process because of __________.

... The number of cheetahs remaining in Asia and Africa is very low. They suffer from the side effects of inbreeding, including low sperm count and deformed tails.

Question 9 of 21

After becoming extinct in the wild in the 1960s, Przewalski's horses have been undergoing reintroduction to China since 2001. Problems with the effort so far include _______.

... All are problems with the reintroduction effort. Within the areas designated for reintroduction, there are a limited number of suitable habitats. This, coupled with problems associated with domesticated livestock (interbreeding and competition), makes the reintroduction process difficult.

Question 10 of 21

For almost a decade, black-footed ferrets were not seen in the western U.S. In 1981, a small colony was discovered and protected after one ferret __________.

... After a dog killed one of the animals, the dog's owner took the body to a knowledgeable taxidermist, who identified it as a black-footed ferret. This led to a search for the ferret's home, and a small group was found in Wyoming.

Question 11 of 21

The goal of a reintroduction program is to develop a self-sustaining population that requires very little human intervention. Using this standard, reintroduction programs, in general, have been ________.

... So far, most efforts to develop naturalistic animal populations have not been successful. There has been too much death, insufficient natural reproduction, or significant human involvement has been required.

Question 12 of 21

Animals that are members of endangered species in Africa (e.g., addax, dama gazelle) are being raised on ranches in Texas, where some animals are _________.

... Ranchers allow big-game hunters to kill a limited number of their herds annually. The money raised is used for animal conservation efforts.

Question 13 of 21

A 2011 survey of conservation scientists published in the journal "Conservation Biology" indicated that a majority of the professionals supported _________.

... Almost 60 percent of the conservation scientists were in favor of considering "triage" efforts for endangered species, where the viability of reintroduction would be assessed based on certain criteria.

Question 14 of 21

Some experts disagree with the amount of funds spent on protecting pandas, because __________.

... Pandas are susceptible to a number of illnesses. In addition, they have a restricted diet which has limited nutritional value. It is also very difficult to breed pandas in captivity, which is usually fundamental to reintroduction efforts.

Question 15 of 21

In 2003, what extinct creature was cloned?

... Frozen skin of the bucardo, or Pyrenean ibex, extinct since 2000, was used in a cloning experiment. Unfortunately, the cloned creature died shortly after being born. The surrogate mother belonged to another species of ibex.

Question 16 of 21

In a preparatory step to cloning a long-extinct animal such as a wooly mammoth, scientists cloned long-frozen_______.

... In 2008, Japanese scientists cloned mice from 16-year-old frozen specimens, making it the oldest frozen tissue that had been cloned to that date.

Question 17 of 21

A large repository of frozen skin samples from endangered species is considered a possible source of cloning material. The repository is located in the _________.

... Originally established to research procedures for helping zoo populations, the San Diego "Frozen Zoo" has more than 9,000 samples from 1,000 different species.

Question 18 of 21

In March 2012, scientists from South Korea and ______ announced they would try to clone a wooly mammoth.

... For the cloning process, South Korean and Russian scientists plan to put a wooly mammoth nuclei into the cell of an elephant. The mammoth material comes from the remains of a mammoth that were discovered in Siberia in 2011.

Question 19 of 21

American paleontologist Jack Horner has suggested that dinosaurs may be able to be recreated from the embryos of ______.

... Horner suggested that genetic switches could be turned on inside chicken genes. Modern birds are related to dinosaurs, so perhaps their DNA still retains some dinosaur "directions."

Question 20 of 21

Which of the following is NOT a scientific problem with the cloning process of dinosaurs in the movie Jurassic Park (1993).

... Mosquitoes did exist during the time of the dinosaurs. The process of finding and extracting viable dinosaur DNA, however, is otherwise flawed in the blockbuster movie.

Question 21 of 21

It may not be able to produce Jurassic Park, but, in 2005, soft tissue was found in a fossil of a/an __________.

... A T rex thigh bone unearthed in Montana still had soft tissue, including blood vessels and proteins. This could be a source of much cellular information. Fossilization usually mineralizes organic material, which makes cloning impossible.

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