One summer day, the bushes in our backyard began making all sorts of noise. Or rather, our dog, Bella, was in the bushes and made noise. Our 11-year-old daughter ________ Bella’s pawing (刨) at a branch, where there were several caterpillars (蝴蝶幼虫).

My husband and I ________ that our backyard-frequent hangout of birds-wasn’t the safest ________ for caterpillars. So we got a butterfly house where the caterpillars could ________ metamorphose (蜕变).

Each day, when we took the butterfly house to the ________, Bella followed. Each night, when we brought it back inside, Bella followed, and slept under the table on which it rested. We don’t know why Bella was so ________, but she was there for every step of the budding (萌芽的) butterfies’ ________.

Finally, the caterpillars ________ beautiful butterflies. It came as a ________ that Bella didn’t seem worried when our daughter ________ them. In fact, Bella seemed to understand that this was part of the life ________. It wasn’t until one last butterfly wouldn’t fly away that Bella expressed ________. She gently rested her head near the ________ butterfly, which flied onto her nose. Bella lifted her head,pointed her nose, and ________ one of those breathy dog sighs. With the sigh of Bella,the last butterfly flew off. It seemed a little ________ from a parent to begin one’s own migration (迁移;移居;迁徙;).

Last month, Koch went to make breakfast and found a(n) ________ guest using his pool. A large moose (驼鹿) was swimming in the deep end, ________ in the solar cover (阳能覆盖膜).

“I looked out in the backyard and there's the moose absolutely________ and struggling," Koch told The Dodo. “She stepped on the solar cover and put her foot________ it and she was________ trying to get free."

Koch has noticed more wildlife around his home in Ottawa. ________, he had never seen an animal________ impressive before. He rushed outside and pulled the solar cover off the________ moose, who continued paddling around the pool, ________ to be a surprisingly skilled swimmer.

The wild moose seemed to be having trouble finding her way out of the pool, so Koch called the police and wildlife services to see if they could________ a hand. “She looked so pitifully sad out there that my wife said, I want to give her a(n) ________.”

Workers from wildlife services intended that they would get her to a safer spot, but they couldn't________ it until she was out of the water. “The best thing that happened was that after 3.5 hours she________ of the shallow end and jumped over the fence," Koch said.

The moose________ unscratched, but the same can't be said for Koch's pool-which now has two hoof-sized holes in the________.

Imagine loving someone so much that you’d swim more than 5, 000 miles to see him or her. Dindim ____ swim that far every year to visit his friend Joao. This is ____ , not only because of the love between the two friends, but because Dindim is ____ a penguin. Joao found Dindim covered in oil, barely alive on a beach near his home. He picked him up, cleaned him off and brought him to his house where he ____ him and got him healthy again. Joao named him Dindim.

After a week, he brought the penguin back to the beach and tried to release him, _____Dindim refused to leave Joao. They lived together for the next eleven months. Then, Dindim disappeared. ____, Joao thought he’d never see his friend again. But just a few months later Dindim was back. He found Joao ____, and followed him home. Each year he ____ four months to live with other penguins. For the other eight months, he lives with Joao. Joao says that each time they meet again, Dindim seems ____ to see him. He says he loves the penguin ____ he were his family. He feels certain that Dindim loves him in the same way. Ecologist Carl Safina says that animals can and do love humans. He writes and speaks a lot about animals and their ____ . According to Carl, it’s clear that animals feel love for humans. What’s less obvious is whether or not humans love animals enough to ____ them. Hundreds of thousands of animals are killed by the same oil that____ Dindim when Joao found him.

Fifty percent of ____ has died out in the last 40 years because of humans’ ____their habitats. Scientists say we’re in a new mass extinction period. In the next two generations, they predict that we’ll lose 75 percent of the remaining species on earth.