Tag: Biology

Human Lungs | Parts of Respiratory system | Human anatomy | 3D animation videos

Humans for respiration need a continuous supply of oxygen. Humans take in oxygen and leave out carbon dioxide, which is the poisonous waste product in the process of respiration. The lungs are essential respiratory organs in the human body. The human anatomy consists of two lungs. They can be called as the left and the […]

There Was No First Human

[MUSIC] This is me. I’m a human. These are my parents, they’re clearly humans too. My grandfather, human. My great-grandfather and great-great-grandfather? Humans without a doubt. But my grandfather 185 million generations removed? Not a human. He was a fish. [MUSIC] Imagine you could take a picture of every ancestor down the line and put […]

Respiration in Human Beings | Biology

Hello! So by now we know that the process in which the food is converted into energy is called respiration. This respiration is of two types anaerobic respiration and aerobic respiration. In anaerobic respiration, food is converted into energy in absence of oxygen; while in aerobic respiration the food is converted into energy in presence […]

Human Vs. Horse Marathon | NPR’s SKUNK BEAR

No matter how strong or fast you are, if you went up against the rest of the animal kingdom in most physical challenges, you wouldn’t do that well. Take Usain Bolt – the fastest guy we’ve got. In his record setting 100 meter dash, he was moving almost 28 mph. But that’s nothing compared to […]


What’s happening inside your body? Have you ever wondered how little we know about our bodies the human body is an amazing and unique machine? That triggers thousands of processes every second and we’re not aware of a single one Today, we’re about to look at all the processes that are going on in the […]

Why Are Some People Left-Handed?

[MUSIC] [MUSIC] Evolution spent nearly 400 million years crafting these works of art, two of the most important pieces of the human evolutionary puzzle. Yet 99% of us end up being good with one hand and not the other, for common tasks like writing, high-fiving, and the all-important one-handed texting. Even life itself seems to […]

Why Are People So Passive-Aggressive?

Have you ever had a friend who casually made a hurtful comment and joked about not being serious? Or a co-worker who replied to your sincere apology with, “Fine. Whatever…”? In these kinds of scenarios, people express resentment or aggression – but in a passive way. So why are people so passive-aggressive? This is a […]

Why People are Always Fighting Over the Thermostat

{♫Intro♫} Negotiating thermostat settings can be one of the most frustrating squabbles you’ll ever have. Whether it’s family or roommates, or co-workers or classmates, finding that Goldilocks temperature that will suit everyone can be rough. You’d think it would be easier for us all to agree on a comfortable temperature. I mean, we’re all human. […]

Why Are We The Only Humans Left?

Look around and you’ll meet some pretty smart animals, but there’s no species quite like us. But that wasn’t always true. As recently as 50,000 years ago we walked the planet along with at least three other human species. Denisovans and real-life Hobbits Homo floresiensis didn’t leave much behind to know them by, but Neanderthals […]

Michio Kaku on the Evolution of Intelligence

Some people think that intelligence is the crowning achievement of evolution. Well if that’s true there should be more intelligent creatures on the planet Earth. But to the best of our knowledge we’re the only ones. The dinosaurs were on the Earth for roughly 200 million years and to the best of our knowledge not […]