1)Average height 2)Common ancestor 3)Warm-blooded 4)Viviparous 5)See the world in the same shades 6)The same kinds of diseases (stroke, heart attack, diabete, neurological disorders) 7)Creative approach to the process 8)Gregarious lifestyle 9)Communication between each other 10) Amenable to learning 11) Availability of names
DolphinsPeoples Habitant Brain weight 1.7 kg1.4 kg Gyros Dolphins has two times more Sleep AwakeAsleep Information about the world 90% echolocation and hearing aids70% vision Perception of sounds 3000 Hz – Hz20 Hz – Hz waterland Perception of high frequency sounds YesNo Life expectancy 20 – 30 years45 – 55 years
Dolphin People Chimpanzee Monkey Rat