Safari Live - Day 368 | National Geographic

Two of the most studied operons are the trip operon and the Lac operon, and what I want to do in this video is focus on the trip operon, which is essential for the production of tryptophan. Tryptophan, which you might recognize as an amino acid often asso…

Okay, what we’re going to talk about today is how to apply and succeed at YC. In my capacity as the head of admissions, I go around the world, and I give talks, and I meet folks that are applying, and I answer lots of questions. So I think I have a decent…

[Music] Tim, thank you! It’s so great to be here. It’s so great to have you here, honestly. It’s amazing to have you here at home on my sofa, and I love it. It’s beautiful. Thank you. I—I have to say, like, before this interview, I went on the internet t…

All right. It looks like I’m online on Facebook. Hello everyone at Facebook! Sorry, running a little bit late. If you ask, I’ll tell you about my morning. And it looks like we’re online on YouTube. All right, so this is good. As you can imagine, this has…

Smell perception in mammals involves the interactions of airborne odorant molecules from the environment with receptor proteins on the olfactory neurons in the nasal cavity. The binding of odorant molecules to the receptor proteins triggers action potenti…

Big pigs of youngsters that would explain the very excited behavior between them. Wonderful, right? Well, it’s not just the warthogs and myself and a man who that are joining you this afternoon. Jamie and Craig are in the other car, and they are heading u…