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A. Squid. Scientists used an MRI machine to study the brains of juvenile reef squid. The researchers found brains as complex as a dog’s.
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B. False. Dogs and humans age at much different rates. A recent study showed that a 1-year-old dog is equivalent to a 30-year-old human, so that “multiplying by 7” rule is technically wrong.
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C. 12 miles.
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A. True. Although the common myth says that because dogs are “colorblind,” they can only see in black and white — that’s wrong. Dogs have two types of color-sensitive receptors in their eyes, while humans have three. That means dogs can see some colors (like blue and yellow), just not the same spectrum as humans.
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D. 1,000. Chaser could recognize 1,022 nouns, mostly children’s toys. Unfortunately, the 15-year-old border collie died in 2019.
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Read more about dogs here.