So, that many of the experts feel that this is a submissive signal like a dog tucking his tail between his legs. I would like to also add that Puffers are very long lived fish. Even in captivity, they easily go over 10 years with proper care. Many of the smaller brackish varieties have been recorded to 18 years of age.Larger marine varieties have been seen in their twenties! Keep this in mind, that the puffer you have now will be with you for a long time. So, take good care of it.any of the smaller brackish varieties have been recorded to 18 years of age. Larger marine varieties have been seen in their twenties! Keep this in mind, that the puffer you have now will be with you for a long time. So, take good care of it.
Robert Hooke (28 July 1635 â 3 March 1703) The cover of Robert Hooke's Micrographia, published in 1665. In addition to illustrations of insects, snowflakes, and his famous slice of cork, he also described how to make a microscope like the one he used.
Robert Hooke's microscope. Perhaps his most famous observations were in his study of thin slices of cork, describing the pores, or cells he viewed. Hooke had discovered plant cells, or more precisely, Hooke had been viewing the cell walls in cork tissue. In fact, it was Hooke who coined the term cells: the boxlike cells of cork reminded him of the cells of a monastery. Hooke also reported seeing similar structures in wood and in other plants. Hooke also famously described a fly's eye.