You Have More Than Five Senses
Researchers have estimated that humans have anywhere between 9 and 21 total senses. Some, such as pressure, itch, and pain, might seem like they should be included under the umbrella of touch, but have their own receptor systems. Thirst and hunger can also be considered senses. Even our sense of time may count as a separate sense, and it seems to be more honed when we're younger.
from TestTube Plus
Key Facts In This Video
Pain and itch have their own receptor systems, separate from that of touch. (0:39)
Magnetoreception tells birds and dogs which direction is north. (2:37)
Humans, and children in particular, seem to have an innate sense of time. (3:37)