BIOL 1070 Lecture Notes - Lecture 23: Nuclear Dna, Mitochondrion
12 Oct 2016
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Hybrid offspring that is able to produce more offspring. People accidentally shot and killed the hybrid, scientists were able to then collect dna, blood, etc. and analyze it. Mitochondria from mother: polar bears are monophyletic based on nuclear dna. Female polar bears and male grizzly bears. Polar bears have a comparatively weak jaw, they just chew on fat, not the meat of seals. Grizzly bears eat a variety of things so it is grinding all sorts of vegetation, meaning it needs a very strong skull. Polar bears swim really well, grizzly bears are not great swimmers. Polar bears biologically can have up to 3 cubs, and statistically lately they have mostly just been having 1 cub. Declining body condition of polar bears graph (will likely be on exam) Range, what are the implications for their range: land mass, resources, etc.
