Image Caption
This is not a conflict over a scientific idea, but over how such ideas should be applied.
Image use policy: For non-commercial, educational purposes, this image may be used with a Creative Commons CC BY-NC-SA 4.0 license. Please credit as follows: © University of California Museum of Paleontology, Understanding Science, www.understandingscience.org
This image is part of a series:
![People talking animatedly in front of a chalkboard](https://undsci.berkeley.edu/wp-content/uploads/2022/08/27166_evo_resources_resource_image_93_original.gif)
True scientific controversy (1 of 4)
Scientists disagreeing about a central hypothesis or theory.![Two scientist holding clipboards with different evolutionary trees looking at fossil in an outcrop](https://undsci.berkeley.edu/wp-content/uploads/2022/08/45408_evo_resources_resource_image_94_original.gif)
True scientific controversy (2 of 4)
Scientists disagreeing about a less central aspect of a scientific idea.![Protestors at the National Mall holding opposing signs that say "No STEM cell research" and "Save lives with STEM Cells"](https://undsci.berkeley.edu/wp-content/uploads/2022/08/50554_evo_resources_resource_image_95_original.gif)