Still and video cameras will be useful for recording observations of living things in their natural environment.
Websites:
Dinosaurs:
www.bbc.co.uk/nature/14343366
www.nhm.ac.uk/kids-only/dinosaurs/index.html
www.nhm.ac.uk/kids-only/life/index.html
www.nhm.ac.uk/education/school-activities/index.html
Some other websites can be obtained via the usual search engines, using keywords such as: marsupial; ectotherm; respiration in water; amphibian life cycle.