①People think dogs are man's best friends. Dogs and humans have close and loving relationships(关系) for thousands of years. In fact, the relationships between humans and dogs are deeper than we thought.②Scientists found that dogs cried with joy when they saw their owners after being away...
Dogs and humans(人类) are good friends. There are many reasons. One of the reasons is thatwe don't speak the same language. Your dog will never say anything to make you angry.Sometimes they may try to do so. But we are not able to understand them!Some scientists(科学家) in Sweden ...
DDogs and humans have been living side by side for a long time, but there are tons of facts about dogs thatperhaps we have never heard of.Night visionDogs have good night vision. Their large pupils let more light in and the rod cells (视杆细胞) work betterin poor light. But the big...
Dogs and humans have been living side-by-side for about 15 000 years, butthere are tons of facts about dogs that perhaps we have never heard of.Night visionDogs have good night vision. Their large pupils let more light in and the rods(视杆细胞) work better in poor light. But the big...
难句解读You may want to save your dog from being hurt, butwhen two dogs start to fight they tend to bite at just aboutanything that is near them—including helpful humans.你也许想拯救你的狗免受伤害,但是当两只狗打架时,他们会咬靠近它们的任何东西,包括帮它们的人类。but连接两个并列的分句,...
Dogs aremammals like humans, and they haveallthe things you need to survive. Our pet dogs giveusso much happiness, but then somuch sadnesswhenthey die. Sowhy don’t they survive as long asus? Scientistsworked out a long time ago that thelifespanof animals is mostly related to theirsize....
Although the domestic dog’s origin is still unclear, this lineage is believed to have been domesticated from an extinct population of gray wolves, which is expected to be more closely related to dogs than to other populations of gray wolves. Here, we sequence the whole genomes of nine Japane...
Dogs are known as humans’ friends. But in British woman Caroline s eyes, her dog Sam means more. This special dog has completely changed her life. Caroline had some hearing loss( 失聪 ) when she was a child, but she lived a normal life. However, when she was in her twenties. her ...
The friendship between humans and dogs possibly began 14000 years ago.Here are four examples of“a dog’s life“in the human world today.Treated like a queenTiffy is one of these dogs.Her owner,Nancy Jane Loewy,treats her like a queen.
Dogs and humans have been living side by side for about 100,000 years.Some dogs are even__16__than cats and some are bigger than little horses.Some big dogs are so full of__17__.They bring people joy but get into trouble for their behavior,__18__they push children over when they...