Dolphin Intelligence and Brain Size

The video discusses the intelligence of dolphins compared to other animals, emphasizing that while dolphins are intelligent, so are other species like great apes and elephants. The discussion is based on the relative size of the brain to the body, where humans have the largest brain size relative to their body, followed by dolphins. This measure places dolphins second to humans in terms of brain size.

Which animals, besides dolphins, are mentioned as being intelligent?

• Cats and dogs

• Great apes and elephants

• Sharks and whales

• Lions and tigers

What is the basis for the claim about dolphin intelligence?

• Their ability to communicate

• Their speed in water

• The size of their brain relative to their body

• Their social behavior

Which species has the largest brain-to-body size ratio?

• Humans

• Great apes

• Dolphins

• Elephants

According to the speaker, where do dolphins rank in terms of brain size relative to body size?

• Fourth

• Third

• Second

• First

What measure is used to rank dolphins second to humans?

• Brain size relative to body size

• Number of neurons

• Problem-solving ability

• Brain complexity