Zmyslové orgány psa
Zmyslové ústrojenstvo slúži na komunikáciu organizmu s vonkajším prostredím a tiež analyzujú zmeny vo vnútri organizmu. Zmyslové orgány sú vybavené takzvanými receptormi, ktoré prinášajú mozgu dôležité informácie. Každý receptor je určený na vyhradený druh podnetov. Medzi zmyslové orgány patrí zrak, sluch, čuch, chuť.
Zrak
V minulosti sa predpokladalo, že pes vidí čiernobielo. Výskumy v posledných rokoch ukázali, že pes rozoznáva výrazné farby a pravdepodobne vidí pastelovo.Dokaže rozlišovať červnú,modrú a fialovú v roznych odtieňoch. Pes zaregistruje pohybujúcu sa osobu zo vzdialenosti cca. 500 m, svojho psovoda spozná asi zo 100 m. Za šera vidí trikrát lepšie ako človek pretože má v oku tzv. mačacie oko(tapetum lucidum).
Sluch
Väčšina posv má ušnice ovládané 17 svalmi.Kým človek začuje šelest zo vzdialenosti 3-4 m, pes ten istý zvuk začuje už zo vzdialenosti cca. 25 m. Psy dokážu vnímať aj ultrazvuk do 35 000 až 60 000 Hz,mačka do 25 000 Hz a človek do 20 000 Hz. Využíva sa to pri psích píšťalkách, ktoré sa využívajú na privolanie psa, pričom ľudia nič nepočujú.Ultrazvuk nad 20 000 Hz je pre človeka nepočuteľný.
Čuch
V celej zvieracej ríši majú už len určité nočné motýle taký vyvinutý čuch,že im slúži na podstatne väčšie vzdialenosti. Pes dokáže zistiť prítomnosť niektorých látok aj v milionkrát nižšej koncentrácii než človek. Čuchové pole človeka má 3 cm2, nemeckého ovčiaka 160 cm2. Pes čuchom vyhľadáva potravu, orientuje sa v teréne, identifikuje veci, osoby, zvieratá. Má veľmi dobrú čuchovú pamäť, ktorá sa využíva pri stopovaní ľudí a zvierat. Pes dokáže rozlíšiť čerstvosť stôp a na základe toho zvoliť správny smer pri stopovaní.
Chuť
V porovnaní s človekom má pes len málo vyvinutú chuť.Pes sa v spolužití s človekom naučil spoznávať veľa nových chutí a dodnes má často záľubu v potrave pripravenú človekom.
Šiesty zmysel
Podľa niektorých názorov majú psy aj nejaký šiesty zmysel, ktorým dokážu detekovať geopatogénne zóny. Využíva sa napríklad tak, že psa pustia do prázdnej miestnosti a kde si ľahne, tam sa umiestní posteľ. Kam si ľahne mačka by sa vraj naopak posteľ dávať nemala.
Niektoré psy dokážu predvídať epileptický záchvat majiteľa a svojim správaním ho naň preventívne upozorniť. Predpokladá sa, že pred záchvatom sa mení vôňa človeka.
Pes je citlivý na vibrácia rovnako ako mačka.Može podstatne skor ako človek vycítiť otrasy zeme.Kuriozne však je,že psy reagujú len ak hrozí nebezpečenstvo pravé zemetrasenia.
Pes údajne dokáže občas predvídať smrť svojho pána,aj keď sa okoliu zdá,že na to nie je žiadny dovod.Podobne vraj aj celkom presne cítia,kedy je čas na neobľúbené kúpanie,a pritom naň ešte nezačali prípravné práce.
Chrup
Vo všeobecnosti má pes 42 zubov ktoré sa delia nasledovne:
Horná čeľusť:6 rezákov,2 špiciaky(očné zuby),8 črenových zubov(predstoličiek),4 stoličky
Spodná čeľusť: 6 rezákov,2 špiciaky,8 črenových zubov a 6 stoličiek
Tak ako u človeka,aj u psa prvý chrup šťeňaťa pozostáva z mliečnych zubov,ktoré po prerezaní nahradí trvalý chrup.
Podľa tvaru čeľuste rozoznávame:
Nožnicový záhryz
Kliešťový záhryz
Predhryz
Podhryz
Psy majú silnů zbraň:ZUBY Ak je potrebné,možu svojimi silnými svalmi sánky sposobiť značné zranenia.Krížence vážiace 20kg sa možu zahryznúť silou 165kg,kým človek vyvinie sotva jednu tretinu(od 20 do 29 kg).
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香港十大经典电影，由于不同的人有不同的标准，因此很难定义香港最重要的电影。该名单是根据对电影发展的重要性，对其他电影制片人的影响，文化重要性和香港电影的历史重要性等因素选择的电影行业。
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英雄本色A Better Tomorrow
《英雄本色》是一部由吴宇森执导的1986年香港犯罪电影，由周润发，狄龙和张国荣主演。这部电影对香港电影业乃至国际影业都产生了深远的影响，香港后来的黑帮电影都是以英雄本色为参照，现在流行一句话，英雄本色是香港黑帮电影的开始，而《无间道》则是香港黑帮电影的结束，由此可见这两部电影对于香港电影的影响力。
＃2《精武门》
精武门李小龙(1972)Fist of Fury
《精武门》（Fist of Fury）是由李小龙主演的1972年香港功夫电影。《精武门》是李小龙最具影响力的作品之一，于1970年代开创了“功夫电影的黄金时代”。
＃3.《大话西游》系列
A Chinese Odyssey Part One: Pandora’s Box
《大话西游》是一部由刘镇伟（Jeffrey Lau）执导的1995年香港奇幻喜剧电影，由周星驰（Stephen Chow），吴孟达（Ng Man-tat）和朱茵主演。该片改编自中国古典小说《西游记》。它结合了喜剧和武侠的元素，围绕着一个爱情故事的中心主题，这部电影在香港上映的时候票房并不理想，而在中国大陆播放之后，在网络上引起了强烈的反响。
＃4.《阿飞正传》
阿飞正传 Days of Being Wild
《阿飞正传》是由王家卫导演的1990年香港电影，由张国荣，刘德华和张曼玉，刘嘉玲主演。这部电影在当年的香港电影金像奖中横扫一波大奖。
＃5.《少年黄飞鸿之铁马骝》
少年黄飞鸿之铁马骝/Iron Monkey
《少年黄飞鸿之铁马骝》是1993年由袁佑平执导的香港武术电影，由甄子丹，余荣光和王晶主演。影片讲述了中国民间英雄黄飞鸿的童年和父亲黄启英的故事。
＃6.《倩女幽魂》
A Chinese Ghost Story
《倩女幽魂》是一部1987年的香港浪漫恐怖片，由张国荣和黄祖贤主演。它是鬼怪电影的代表，几乎是其他同类电影无法比拟的。魔鬼的怪异世界，女鬼聂小倩的美丽形象以及整部电影的浪漫气氛，已成为在观众心中挥之不去的独特影像。
＃7.《甜蜜蜜》
甜蜜蜜 Comrades: Almost a Love Story
《甜蜜蜜》是1996年由陈可辛导演的香港电影，由张曼玉，黎明，曾志伟和杨恭如主演。这部电影既是引人入胜的浪漫爱情，也是香港的迷人景象，捕捉到这座大城市在深刻的历史变革边缘时明显的焦虑和迷失方向。
＃8《A计划》 Project A
A 计划 Project A
A计划是一部由成龙执导的1983年香港武术，动作片，喜剧片。成龙在影片中携手武术巨星洪金宝。成龙担任19世纪海岸警卫队办公室的一员，为香港的边境地区保卫走私和不受欢迎的人。电影中最大的特技是向1923年的哈罗德·劳埃德（Harold Lloyd）序列致敬，从追捕者手中逃跑，最后悬吊在钟楼上。
＃9.《最佳拍档》 Aces Go Places
最佳拍档 Aces Go Places
最佳拍档是1982年由曾志伟（Eric Tsang）执导的香港喜剧电影，由许冠杰（Sam Hui）和麦嘉（Karl Maka）主演。这是一部令人难以置信的过时电影，其中包含着真正的乐趣。许冠杰和麦嘉具有良好的化学反应。还有一些不错的特技，疯狂的节奏是绝对的优势，超级多的笑点，是香港喜剧片的经典代表作。
＃10.《无间道》Infernal Affairs
无间道2002 Infernal Affairs
《无间道》是2002年香港电影惊悚片，由刘伟强和麦兆辉执导，梁朝伟、刘德华、曾志华、陈慧琳等主演，在香港电影大萧条的背景下，这部电影被誉为重振香港电影业的复兴作品，这是一部犯罪惊悚片的现代杰作，也是一部卧底题材难以超越的代表作。
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