I just ordered this BBC documentary starring David Attenborough and I must say, this is the best documentary on Mammals so far. It far exceeds my expectations and anything that the Discovery Channel has put out. They start with Marsupials, one of the earliest mammals, and branch out to placental mammals (like us) where the babies are born independent. They classify and show so many different mammals and how each is adapted to its environment and specific diets that it's hard to imagine that there is no intelligent design in this world. These animals are SO specific to what they need to survive.
But what I'm wondering is: I know that when things evolve over millions of years, that is a lot of time to change. But I wonder how and when and why these animals made the choices they did. It must have been quite a struggle. And how did the animals body parts adapt to what they needed them to? I think of it like a plant. When you watch a plant in your living room grow, it does nothing. But when you take a photograph every day and after a year flip through the photos, then you can see the plant making it's choice to grow toward the sun and you can see it move. Mammals must have been like this, where they change over time. But some species have stopped changing, except maybe in size. Some of these species have stayed exactly the same because their diets and conditions have not changed in millions of years. I just wonder why their bodies change to be perfect for what they intend to do. It's so weird.
I also ordered Blue Planet, with David Attenborough, and it should be here any day. It's about the ocean. I can't wait to see it.