What Were some of charle Darwin's struggles?

What was the climate during the silurian period? What do rhinos do during the day? Can bacteria make a person sick or better? How many times a day do you need to feed your 9 year old Maltese poodle? What could be the problem if your female 15-year-old mongrel has been bringing up bile for the last 2 days in addition to her eyes darting from side to side? Can you safely feed uncooked rice to wild birds? How much did a hot dog cost in 1963? Who studies entomology? Should you have your kitten nueted? Who is the main character in The story A Cow Called Boy by C Everard Palmer? What are the top ten dogs names? Organisms with overlapping niches probably have which type of relationship? How wide is a cow's intestine? Which fish eats algae growing on a shark's body? How many babies do gorillas have at a time? What does aic stand for? What is a birds thumb? How many different types of owls are there? What is a good name for a girl coyote? What do you do to have babys?