[insert her the story of dinosaurs lecture]

Transcript: Hi everybody and welcome to this week in thsi story of dinosaurs. So this week our topic is going to be the metabolism of dinosaurs. So what you’re going to do for your group weekly assignment for this week is investigate a bunch of different dinosaur metabolic strategies from scientific literature. So you’re going to get together in groups. If you go to the homepage the week to warm or cold blooded home page and you scroll downto the group readings. Okay, you’re going to find a list of five different groups. And so you can click on the group to figure out which group you’re in or you can go up to the people tab in canvas and you can click on dinosaur metabolism the dinosaur metabolism tab and then you find the groups so you can see that there are five different groups. You can click on each of these groups and find your name to figure out which group you are currently in. You can also click on the three circles in the far right corner of your screen and go to visit group home page. This is where you’re going to find all of the area where you can communicate with your group members. Adn so the goal of this week is going to be for you to read the scientific article. There’s a video in this week’s material to showo you hwo to get through a scientific article. It’s written for a completely different audience not necessarily for general public consumption. So you might have to deal with how you access that material a little bit differently. Okay, but feel free to work together in this group. Okay, and you’re going to summarize what you found explain one certain figure that i’ve identified in your article. And then you’re going to make a flipgrid video explaining what you guys found in your article. What’s the metabolic strategy that those dinosaurs had in your article? What are the dinosaurs in yourarticle? So what are the dinosaurs with some metabolic strategy? And what’s the evidence for that and then explain the figure?

What is Metabolism?

Let’s put this argument to the test this week! When i was a kid, dinosaurs did not have feathers. They also were not certain if they were warm-blooded or cold-blooded. we now have a bit more evidence to go off of. So, let’s heat things up (or cool them down . . . depending on which side of the argument you are on).

So, you can find the [Notes with Gaps] for this week and [Power Point here]. what are some ways that animals fuel their bodies? Watch the videos below on how reptiles and birds regulate their body temperatures. Let’s find out!

[insert metabolism video lecture]

Transcript: Hi everybody, I’m Dr. Ashley Burkett and this week we are going to be talking about dinosaur metabolism. First off, what is metabolism? It’s the way that organisms produce energy, typically through food consumption or sometimes other means. It’s the way that they’re going to be able to regulate their body temperature through thermal regulation processes. When dinosaurs were first discovered they were described as these large terrible lizards. It’s not surprising that it was primarily assumed that they were giant ectotherms (cold-blooded), or animals that were going to rely on external sources for the temperature regulation of their body. But dinosaur scientists went through a period called the dinosaur rennaissance. During the dinosaur rennaissance we went back to the drawing board and started to rethink what dinosaur metabolism may or may not have looked like. Were dinosaurs big sluggish cold blooded reptiles like crocodiles are today? With the capability for bursts of energy to make sudden movements? Or are they constantly able to move around and have a lot of energy kind of like birds are today. Birds are endotherms (warm blooded). They are organisms that are going to create heat from the food that they consume. The burning of that food is going to fuel the temperaure of their body. Birds, like mammals, including humans, are endotherms, meaning they are going to generate their temperature inside of their body. This is much different than crocodile metabolism. Crocodiles are ectotherms, so you often see crocodiles lying out on the banks of the river soaking up sunlight. They are going to be doing that to heat up their bodies. Most reptiles are ectotherms. For a lot of them, they either need to find a heat source at night oro they kind of slow their metabolism down which might also slow down their behavior. Some reptiles, if you approach them in the morning, you may find that they are a little bit more sluggish and less able to move. That might not be because they aren’t scared of you or they are going into a freeze mentality. It might be because their body is not physically warm enough for them to start jettisoning away from you right away. A lot of times we will find certain animals like snakes in the midwest where I grew up for instance if you go on a hike in the morning you may be more likely to see snakes out sunbathing in the early hours of the day so that they can maintain their temperature and get some energy for existing throughout the rest of the day. So let’s talk about those different kinds of metabolisms.

How to Read a Scientific Article

To dive into the dinosaur literature in the most efficient way possible we will be splitting up into groups, reading a scientific paper, and reporting our findings. Before we get that far, let’s review how to interpret a scientific article. Check out the video below:

[insert quality lecture]

Group Readings

To find your group assignment go to People>Groups>Dinosaur Metabolism. Once you have done that you can communicate with your group on your personal group page by clicking on the appropriate link below. you can post to the message board to communicate who reports on each question. Then post your findings to Flipgrid [flipgrid link] and comment on 2 other groups’ video. Each group only needs one video but you can post in parts if needed, just make sure the labeling is clear (include part 1 of 2, or whatever, in the video title).

1. Sauropod Gigantism
2. T-rex Skull Morphology
3. Evidence for Mesothermy
4. Shotfalls of Mesothery
5. Biomechanics

After your group has met or exchanged information, create a Flipgrid video with your findings. Once everyone has posted, review the videos and comment on at least 2 videos (with a response video). You will be graded on your group participation [Dinosaur Metabolism Group Work] and your Flipgrid video [Flipgrid Dinosaur Metabolism].

Review All Groups on Flipgrid

Make sure you ahve gone to Flipgrid and commented on at least 2 videos [flipgrid link]. What is your conclusion about how dinosaurs regulated their body temperature? Complete your assessment on the survey here: [Dinosaur Metabolism}

After you are done, complete the [Weekly Quiz 3b]

Wrap up!

[insert wrap up video]