Student Handout: Evidence of Evolution

When did the genes underlying forearm structure evolve? The limbs of bats, pigs, and mice are homologous, revealing common ancestry. Learn how homologous gene expression supports evolutionary evidence.

Related resources

• Reading: What Do a Bat, a Pig, a Mouse, and an Opossum Have in Common?

Topics

• phylogenetic tree
• common ancestry
• limb development
• Hoxd13 gene
• comparative anatomy
• evidence of evolution
• gene expression
• homologous
• tetrapod limbs