Recently, I went to the La Brea Tar Pits in LA on a field trip for my Animal Drawing class. Our purpose was to analyze at least one of the skeletons on display and transform it into more simple 3-d forms. I did several quick studies of the various species that were on display but only took one to a more finished state.
I enjoyed the opportunity to marvel at the beasts of our past and it was very enjoyable to be able to understand the scale of these creatures. Walking under the tusks of a Mammoth was quite the humbling experience.