Why Can't We Eat Grass?

Some animals like cows can live on grass, so why can't humans? And why do dogs and cats eat it even though they can't live on it either? Learn about digesting grass in this episode of BrainStuff, based on these articles: https://animals.howstuffworks.com/pets/why-do-dogs-and-cats-eat-grass.htm; https://health.howstuffworks.com/human-body/systems/digestive/why-humans-dont-eat-grass.htmSee omnystudio.com/listener for privacy information.

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Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.