Why No Giant Mammals?

The video explores why modern land mammals are not as large as dinosaurs, despite the blue whale being the largest creature ever. It discusses factors like live birth, long gestation periods, environmental changes, skeletal limitations, and thermoregulation that prevent mammals from reaching dinosaur sizes. The video concludes with a call to action for viewers to engage with SciShow.

What is the largest recorded species of dinosaur mentioned in the text?

What does the fossil record suggest about the size and diversity of mammals after the dinosaurs disappeared?

What are some reasons modern land mammals do not reach the sizes of dinosaurs?

How did Earth's climate and ecology contribute to the size of dinosaurs?

What are the implications of mammals being warm-blooded compared to reptiles?