Polar Bear Phylogeny Quiz

The polar bear is most closely related to the Brown Bear. This can be inferred from the polar bear phylogeny, which is a study of the evolutionary relationships between different species. The phylogeny shows that the polar bear and the Brown Bear share a more recent common ancestor compared to the Asiatic Black Bear, Lesser Panda, and Sloth Bear. Therefore, the polar bear and the Brown Bear are more closely related to each other in terms of their genetic and evolutionary history.

The trait that the Lizard has in common with the Perch is jaws. Both the Lizard and the Perch have jaws, which are essential for feeding and capturing prey. Jaws allow these animals to bite and chew their food, aiding in the digestion process. While the Lizard and the Perch may have other traits in common as well, such as lungs or claws, the presence of jaws is the specific trait that they share.

Count the nodes! The common ancestor for the polar bear and the raccoon/lesser panda is the same.

1. Find the node with the common ancestor (where their roads meet together)
2. Which traits developed/emerged before that node?

Your organism has all of those traits because all of those traits emerged before the polar bear