All the items you see were sourced ethically, either from being purchased from trusted buyers or stuff that nature had claimed long before I had found it.
A canine skull, though I'm not exactly sure what canine. Purchased.Various frog bones in a glass tube. Cleaned myself.Two goat teeth. From a friends farm.A diaphonized goldfish. PurchasedVarious human teeth. Pictured left is a necklace full of baby teeth, in the center is an adult molar under a glass dome, and on the right is a loose wisdom tooth. Left and right were given to me by friends, middle was purchased.A mink skull. Purchased.Two pictures of a diaphonized mouse. The first shows the whole mouse from the side, the second shows a closeup from the front, showing off its ribcage. Purchased.A pheasant skull. Purchased.A damaged pig skull. Purchased4 prosthetic eyes arranged in rows of 2. In the top left is a green eye in a gold box, in the top right is a green eye in a black heart-shaped box, and the two bottom ones are two brown eyes. PurchasedA rabbit's foot keychain. Purchased.A partially articulated rat tail. Purchased.A scorpion and a sea star encased in resin. Purchased.A shark jaw. Purchased.2 skunk leg bones. Purchased.A vintage medical teaching slide, showing off the large intestine. Purchased.A vintage medical teaching slide, showing off various endocrinopathies associated with ovarian pathology. Purchased.A fox tail (top) and a raccoon tail (bottom). Fox tail was purchased, raccoon tail was gifted.A turtle shell, though I'm not sure what turtle it's from. Gifted to me.Two pictures of vertebrae, on the left is a human vertebrae, on the right is a deer vertebrae. Human vertebrae was a gift, deer vertebrae was purchased.A skull xray. Purchased.