In this task, we're going to remove a rat from the cage and then weigh him. Most domestic rats are very friendly, and they're used to being handled, so you should feel quite comfortable in picking them up. When you get a rat brought into your practice, just have a quick look at their cage that they come in. And also the rat's behavior. Is the rat frightened? Is it huddled in the corner? A rat that's huddled in the corner is more likely to bite you when you're going to pick them up than one that's friendly, jumping up to see you. First things first. Just open the cage and see how the rat approaches you. This little fellow's having a wash so I won't interrupt him just yet. And if need be, you can remove some of the houses that's in there, so it'll make it much easier to get the rat out. If that rat's huddled to the side, it may be easiest to take the whole end of the cage off. OK. This little fellow's quite friendly. Just introduce yourself to them. Hello. What you're trying to do is you want to grasp the rat around the shoulders firmly, and then hold his back end, and then hold it to you and just say, hello. They're generally very friendly and like to be handled. Just if there's another rat inside just remember to shut the cage door. The next part of this task that we're showing you is to weigh a rat. So the first thing we'll do is we'll turn our scales on. Plop a box on. And this is to reduce the risk of the rat escaping as you're weighing him. Put the scales to zero. Put the rat in the box. And just wait for him to stop jumping around and then you can get a weight. And there's about three hundred and 87 grams on the scales.