Squirrels are one of the most familiar—and possibly the least appreciated—of our animal neighbors. They inhabit millions of yards, parks, and forests on every continent except Antarctica. Watching their antics is an amusing pastime; after all, both their acrobatic skill and their appearance make them natural entertainers. However, they are also noted for their ability to aggravate those who share living space with them. The squirrel's reputation as a yard pest and robber of bird feeders is legendary—it is common knowledge that no bird feeder is squirrel-proof. A close scrutiny of squirrels reveals the remarkable characteristics that allow them to be both a blessing and a bane to their human neighbors.
The physical agility of squirrels exceeds that of the greatest circus high-wire and trapeze acts, and squirrels perform almost constantly—and always without a net! Scientists have determined that squirrels can jump about 10 times the length of their own bodies. This enables them to accomplish amazing feats as they leap from tree to tree or navigate telephone wires with the nonchalance of a tightrope walker, using their tails for balance. They are also aided in these aerial feats by the ability to rotate their ankles 180 degrees, so they can pivot faster and with more flexibility than any athlete. Their vision is acute, and they can see above, below, and to the side without moving their heads. Thus, they are able to position themselves—and watch for potential problems and dining possibilities—very easily. It is little wonder that they are aerial artists as well as master thieves!
Their mental dexterity is as keen as their physical ability. Since they are thieves themselves, they are deeply suspicious of others when they are burying their seeds and nuts. In fact, they often dig up their caches and rebury them several times to prevent the possibility of theft. If they are certain they are being watched, they may choose to mislead the would-be thief by pretending to bury the seed or nut. They go through the entire burial process while keeping the food securely hidden in their mouth. This keen power of observation enables them to take advantage of their environment. Squirrels have been known to cross busy streets with a parade of humans as protection and to study other squirrels to pick up pointers about stealing food. Also, no one who has ever watched a squirrel defeat a "squirrel-proof" bird feeder would doubt their creativity in problem solving. They have shown themselves fully capable of screwing lids off containers and working out a way to retrieve food suspended on a string. Squirrels display a striking degree of determination and resourcefulness in solving problems that would otherwise keep them from their food.
Which sentence ,begin emphasis,best,end emphasis, summarizes the author's bias?
Answer options with 4 options
1.
The exceptional qualities of squirrels are often overlooked.
2.
Squirrels are one of the most familiar of our animal neighbors.
3.
People generally regard squirrels as both helpful and harmful.
4.
Squirrels struggle to survive in a changing environment.