QUOTE
A Whale with Legs
It has become popular among evolutionary biologists with an interest in fossil cetaceans to emphasize that whales once had legs. Here's an example of a recent whale, specifically the humpback whale (Megaptera nodosa), which was found with rear "limbs." A female humpback was killed by a whaler in 1919. The pelvic bones protruded from the body approximately 4 feet 2 inches. They were covered with blubber. A "limb" is very noticeable in the photograph accompanying the article below, but does not resemble a "leg" as we would consider it. Andrews notes that these "limbs" are in the same place as one would find rudimentary hind limbs that have appeared in embryos of humpback whales. Usually, these rudimentary limbs disappear as the embryo develops. Perhaps this was a case of a whale with neotenic traits?
Andrews, R.C. 1921. A remarkable case of external hind limbs in a humpback whale. Report of the Provincial Museum (British Columbia) M9-M11.
It has become popular among evolutionary biologists with an interest in fossil cetaceans to emphasize that whales once had legs. Here's an example of a recent whale, specifically the humpback whale (Megaptera nodosa), which was found with rear "limbs." A female humpback was killed by a whaler in 1919. The pelvic bones protruded from the body approximately 4 feet 2 inches. They were covered with blubber. A "limb" is very noticeable in the photograph accompanying the article below, but does not resemble a "leg" as we would consider it. Andrews notes that these "limbs" are in the same place as one would find rudimentary hind limbs that have appeared in embryos of humpback whales. Usually, these rudimentary limbs disappear as the embryo develops. Perhaps this was a case of a whale with neotenic traits?
Andrews, R.C. 1921. A remarkable case of external hind limbs in a humpback whale. Report of the Provincial Museum (British Columbia) M9-M11.