Animals in North America have a problem — they’re having a hard time moving around.

Migration is key for the survival of a lot of species. But in many places, developments like roads, highways, towns, industrial plants, or even entire cities form roadblocks that limit how far animals can move before they encounter humans in a potentially dangerous way. That's bad news on any day, but especially now that temperatures are on the rise. According to a study from the Proceedings of the National Academy of Science, only 41% of natural lands in the United States are connected enough to allow animals to trek safely toward cold enough habitats.

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Rocky Mountain Wolf Project

Dear world: This is what autism really feels like to me.

These are the things people don't tell you about living with autism.

The author, Jack’s mother, wrote this from Jack’s perspective based on conversations and observations of him at the Disney parks and in life.

Dear world,

Last week, my family went to Disney.

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Imagine a futuristic landscape where gleaming silver spires lined with effervescent lights rise like fabricated flowers from a green, expansive plain, stretching up toward the sun...

Probably not what comes to mind when you think about Africa, huh?

You might be surprised to learn that the second largest continent on the planet is also home to some of the world's most futuristic cities — and there are plans to build even more.

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