实际上，人类对自己的情感（或者说意识）到底是什么都没有完全搞明白，对狗的情感更是如此，我们无法知道狗到底是怎么想的。目前而言，人类只能对狗的外在行为和生理构造进行研究。
人类虽然无法得知狗是否对自己有真实的情感，但确实可以证明狗是有智力的：
Dog intelligence is the dog's ability to perceive information and retain it as knowledge for applying to solve problems. Studies of two dogs suggest that dogs can learn by inference and have advanced memory skills. A study with Rico, a Border Collie, showed that he knew the labels of over 200 different items . He inferred the names of novel things by exclusion learning and correctly retrieved those new items immediately and four weeks after the initial exposure. A study of another Border Collie, "Chaser," documented his learning and memory capabilities. He had learned the names and could associate by verbal command over 1,000 words .Dogs can read and react appropriately to human body language such as gesturing and pointing and human voice commands.大致意思是，狗能够识别超过200个不同的物品，分辨出超过1000个单词，还能对人类的肢体语言以及语音指令做出相应的反应。
如果要问狗是否天生就对人类有感情，我认为答案是否定的，不要忘了狗的祖先是狼，它们具有攻击人类的天性：
The most recent common ancestor of both is estimated to be from 32,100 years ago. This indicates that an extinct Late Pleistocene wolf may have been the ancestor of the dog,with the modern wolf being the dog's nearest living relative.研究表明，狗的祖先是晚更新世时期的狼。
不过，经过驯化（domestication）后，狗可以成为人类的好伙伴，例如，狗可以成为人类的宠物、帮助人类工作（消防犬，警犬等）、和狗相处有利人类的心理和生理健康。
另外，有研究表明，狗在生理上确实具有特殊之处：
有动物认知研究人员对狗狗大脑进行核磁共振成像（MRI）扫描结果发现， 狗狗主人的气味真的可以激发他们大脑当中的尾状核，在味道出现的时候，狗狗会将关于人类的讯息放到最优先的顺序 。声音的情绪反应和人类的反应有所相似，科学家发现， 快乐的声音可以特别唤起其听觉皮层。总而言之，狗对人类是否有「真的感情」无从得知，但可以确定的是，狗具有攻击人类的天性，而 经过驯化的狗 是人类忠实的好伙伴。
参考资料：
[1]维基百科：狗（dog）
[2]https:// baijiahao.baidu.com/s? id=1639815758666949740&wfr=spider&for=pc
