What is the main idea in Marley and me?

What does it mean when cat scratches swell on your skin? Do lions walk so how they walk? What do you call a woman who had a baby but did not get married? How do you make your dog famous? How much does a dog wheel chair cost? Where was Darwin when he noted that there could be possible links between distinct but similer species? Why do lynxes have short tails? How do blind fish make up for there poor vision? What is the purpose of a frog's sticky tongue? How would you describe the sound of crying? In what ways are tunicates and lancelts similar to humans? What structures enable fish to breathe? Which animals are most likely to to carry the seeds found in berries from a parent plant to another area? Do sloths communicate? What animal prey on lion? What makes the jaguar unique? How do you get fishing derby on starfy? When do you burn off a goats horns? How is Angora fur produced? What kind of coral is good for clown fish?