Dogs and Humans: A 30,000-Year Friendship
Adults HumanOf all the species that humans have domesticated, dogs are our oldest animal friends. But how did a group of wolves become the furry pup at the end of the bed? New research is finally unlocking the paw-in-hand evolution of dogs and humans. In this episode we're answering one big question: Did we domesticate dogs, or did dogs domesticate us?
Why do we itch? - Emma Bryce
Adults HumanThe average person experiences dozens of individual itches each day. We've all experienced the annoyance of an inconvenient itch - but have you ever pondered why we itch in the first place? Is there actually an evolutionary purpose to the itch, or is it simply there to annoy us? Emma Bryce digs deep into the skin to find out.
5-Yr-Old Pool Prodigy
Adults HumanMeet Keith O'Dell, a bonafide pool playing prodigy. At just five years old, Keith pockets balls like a pro. The sport is in Keith's genes - his parents play pool, his grandparents play pool, the family even eats dinner on the pool table. His father says Keith was "born to play pool." The question is, how will his incredible talent effect the life ahead of him?
How does your body know what time it is? - Marco A. Sotomayor
Adults HumanBeing able to sense time helps us do everything from waking and sleeping to knowing precisely when to catch a ball that's hurtling towards us. And we owe all these abilities to an interconnected system of timekeepers in our brains. But how do they work? Marco A. Sotomayor details how human bodies naturally tell time.
The Immune System Explained I - Bacteria Infection
Adults HumanEvery second of your life you are under attack. Bacteria, viruses, spores and more living stuff wants to enter your body and use its resources for itself. The immune system is a powerful army of cells that fights like a T-Rex on speed and sacrifices itself for your survival.
How to master your sense of smell
Adults HumanSome perfumers can distinguish individual odors in a fragrance made of hundreds of scents; tea-experts have been known to sniff out the exact location of a particular tea; and the NYC Transit Authority once had a employee responsible only for sniffing out gas leaks.
Why are we so attached to our things?
Adults HumanAfter witnessing the "violent rage" shown by babies whenever deprived of an item they considered their own, Jean Piaget - a founding father of child psychology - observed something profound about human nature: Our sense of ownership emerges incredibly early.
Elephant Come To Rescue People
Adults HumanThis video show the bond between Darrick and elephant Kham Lha at Elephant Nature Park when she think Darrick in trouble, so she rushed to the river and try to save him. This is can show us that, when we treat animal with love, they always paid love back to us.