It's easy to assume that every trait - including stubby arms on a terrifying predator - must be beneficial, but the forces of evolution don't really work like that.
It's easy to assume that every trait - including stubby arms on a terrifying predator - must be beneficial, but the forces of evolution don't really work like that.
Getting wet isn’t REALLY what makes wool shrink; it merely exacerbates the friction between the wool fibers, which is stronger in one direction than another, so when agitated in the .. show full overview
Getting wet isn’t REALLY what makes wool shrink; it merely exacerbates the friction between the wool fibers, which is stronger in one direction than another, so when agitated in the washer or dryer, they migrate in relation to each other in a process called “felting.”
Less than half of the rain that falls from a cloud makes it all the way to the ground – because a lot evaporates while falling or after landing in treetops.
Less than half of the rain that falls from a cloud makes it all the way to the ground – because a lot evaporates while falling or after landing in treetops.
What exactly makes sugary syrups so sticky, when neither water nor sugar is very sticky on its own?
What exactly makes sugary syrups so sticky, when neither water nor sugar is very sticky on its own?
2017x25 Why Do India And China Have So Many People? Episode overview
Bemutató időpontja
2017 Sze 31
India and China have so many people today because they’re good for farming and big, but they’ve always been that way, so they’ve actually had a huge proportion of Earth’s people for thousands of years.
India and China have so many people today because they’re good for farming and big, but they’ve always been that way, so they’ve actually had a huge proportion of Earth’s people for thousands of years.
Nutrition during the first few years of life has a huge impact on adult height, and since nutrition has been getting better over time, humanity - including your family - is getting taller.
Nutrition during the first few years of life has a huge impact on adult height, and since nutrition has been getting better over time, humanity - including your family - is getting taller.
2017x27 Why Farming Is Broken (And Always Has Been) Episode overview
Bemutató időpontja
2017 Okt 27
To feed everyone in the future, we may need to disrupt 10,000 years of farming practices and turn agriculture into a closed system.
To feed everyone in the future, we may need to disrupt 10,000 years of farming practices and turn agriculture into a closed system.
2017x28 Why Do Female Hyenas Have Pseudo-Penises?! Episode overview
Bemutató időpontja
2017 Nov 04
Female hyenas don't have penises, but it sure looks like they do - and we still aren't quite sure why.
Female hyenas don't have penises, but it sure looks like they do - and we still aren't quite sure why.
Male birds have the largest genital diversity of any class of animals because their sex chromosomes make it easy to pass male-helping mutations down the line.
Male birds have the largest genital diversity of any class of animals because their sex chromosomes make it easy to pass male-helping mutations down the line.
Considering humans' increased impact on the environment, we may want to reconsider whether there is still a place in our legal system for the Act of God defense.
Considering humans' increased impact on the environment, we may want to reconsider whether there is still a place in our legal system for the Act of God defense.
2017x35Season finale Why Do Birds Migrate Like This? Episode overview
Bemutató időpontja
2017 20
Migrating birds care more about the ease of their trip than the distance they travel, and that leads to some truly roundabout routes.
Migrating birds care more about the ease of their trip than the distance they travel, and that leads to some truly roundabout routes.
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