I had to take this picture in very low light with no flash. The ranger had us stop taking flash pictures to avoid scaring the baby. The mother was concerned about how close the baby ( a week old) was to us, reached over the baby and pulled her gently closer to the mother. Technically its not a great shot, but it is interesting. It was taken at 1/20th of a second with a 100-400 at 3200 ISO. Its a credit to the lens and camera that it got what it got.
Canon EOS 1Ds Mark II ,Canon EF 100-400mm f/4.5-5.6L IS USM 1/20s f/4.5 at 100.0mm iso3200