Dogs belong to the canine.
When a dog follows its nose, its actually being led by thee key senses. Sight:a glimpse of the enemy saves them barking up the wrong tree. Sound: a bark can be a fierce threat, but its also how canines make their long distance calls. Smell: this tells a dog more than all the other senses put together.
Inside its nose are around two hundred million smell sensitive cells, forty times more than in humans. Through them the dogs brain can pick up signals from one molecule of scent in a million. It gives the dog: a completely different picture of the world, based on what it smells, rather than what it sees.
Flowers are irrelevant to a dog. So their scent is meaningless. But food is a serious matter. What to us is an empty plate, is covered with the smell of chicken to a hungry dog.
狗
狗属于犬科劝物。
当狗用鼻子嗅着前行时,实际上有三种感觉在起作用:视觉,瞥一眼就知道敌人在哪儿;听觉,犬吠有一种凶猛的威慑力,这也是犬科动物闽相互嗅寻的方式;嗅觉,能给狗提供的信息比其他感觉总和还多。
狗的鼻孔大约有2亿左右的嗅觉细胞比人多40倍。通过这些细胞,它的大脑能从100万个气体分子中筛选出1个。根据所闻而不是所见的东西,展现给狗的是一个完全不同的画面。
花对狗来讲无足轻重,所以花香对狗无关紧要。可食物是件大事,对我们来说是一个空盘子,可对一只饥肠辘辘的狗来说却散发着鸡肉的香味。
体坛英语资讯:Shangri-La to host cross country race
调查显示 美国千禧一代已经开始弃用社交媒体
国际英语资讯:Thai government declares Nov. 4-5 as public holiday as Thailand hosts ASEAN summit
你知道社交媒体上的sadfishing是什么意思吗?
偷拿厕纸、烟灰缸?这些年从白金汉宫“顺手牵羊”的名人可真不少
研究显示 气候变化对女性影响更大
国际英语资讯:U.S. piles up pressure on Turkey over offensive in Syria amid doubts
国际英语资讯:Fuel prices, transit fares drop to pre-protest levels in Ecuador
国际英语资讯:Kurdish authorities say Turkish assault displaces 275,000 in northern Syria
蕾哈娜手撕Snapchat,只因它做了这件事!
国际英语资讯:Massive fires sweep Lebanon due to sudden temperature rise
国际英语资讯:IMF lowers global growth forecast for 2019 to 3 pct
国际英语资讯:Turkey rejects U.S. proposal for cease-fire with Kurdish forces in Syria
国际英语资讯:British Royal Mail faces first national strike in decade
Barking up the wrong tree 英国人用 “喊错了树”表示“攻击错了目标”
国际英语资讯:Mexican president downplays alarm over dengue
国际英语资讯:Environmental protests continue in central London despite police warnings
美联邦法官裁定DACA必须继续
体坛英语资讯:Chinese womens basketball team gear up for Asian Cup at Canberra training camp
国内英语资讯:Xi, Macron agree to jointly uphold multilateralism, tackle global challenges
国内英语资讯:Vice premier urges deepening innovation, entrepreneurship education
国际英语资讯:Russia to sign investment deals worth 1.3 billion USD with UAE
白宫医生放弃退伍军人事务部部长提名
国内英语资讯:Xis article on ecological protection, development of Yellow River basin to be published
教育部全面取消特长生高考加分
脸书5000万用户信息泄露 扎克伯格发声明认错
甘蔗积木:乐高拟用环保材料替代传统塑料
手机看多了眼睛累?七种办法帮你消除眼疲劳
法国总统马克龙对美国国事访问
报道:川普提名杰克逊出任退伍军人事务部长面临获核准难关