In March of 2015, American astronaut Scott Kelly and his Russian colleague Mikhail Kornienko, began an unprecedented mission in space. They began a one-year term of service aboard the International Space Station, the longest tour of duty ever served on the ISS. Now, I imagine there’s all sorts of stuff
Check out this amoeba. Pretty nice. Kind of a rugged, no-frills life form. The thing about amoebas is that they do everything in the same place. They take in and digest their food, and reject their waste, and get through everything else they need to do, all within a single
We’ve been spending a lot of time lately talking about eating, and digesting, and metabolizing food. And those are some of my favorite things in the world! It’s been a really great time. But, as with all good parties, or brunch buffets, in the end, we’re left with a mess.
Sex and not dying. That’s what biology is all about. And while the sex part is, I’ll grant you, a little bit sexier, not dying is also really fantastic… something that I, personally, like to do every single day. I, personally, like to not die in all sorts of ways.
I weigh about 80 kilograms. Most of that, let’s say 64 percent, is water — though you can’t tell by looking. I mean, as organisms go, I like to think that I look fairly solid. After water, the next largest proportion of me is protein, about 16% — not just
Behavior is action in response to a stimulus. My cat Cameo is now responding to both an external stimulus the sound of a bag of treats, and an internal stimulus her hunger, or at least her insatiable desire for treats. Sometimes animal behavior can seem really far out, but if
It has filled countless diapers, caused discomfort for any number of airline passengers, and it totally ruined the Dude’s rug, which really tied the room together, man. Anatomists call it micturition and I don’t know why because the rest of us know it as urination, which seems like a fine
It is time! We have arrived at the final conflict. The battle royale. A fight to the…well, hopefully not death, but a big fight anyway. It only seems fitting that we spend this, our last episode of anatomy and physiology, talking about one of your body’s last-ditch efforts to defend
No matter what you’re a fan of, you can probably think of two characters who fit the description. Holmes and Watson. Brennan and Booth. Kirk and Spock. Ron and Hermione. They’re close. They understand each other in ways that others don’t, and you really can’t picture one without the other.
Take a good long look at this — we’re gonna mess with your brain. This is the first stage of an optical illusion. Many illusions use patterns of light or perspective to exploit the disconnect that exists between sensation and perception — between what your eyes see and what your