"The presence of leucism raised many questions that led me to investigate the causes of the deformity, which taught me a lot about the make-ups of shark skin and the different adaptations they may have," Kuguru said. And during his time working at a cage diving company with great white ...
Early sharks had fixed jaws and smooth skin. Approximately 210 million years ago, 12 new groups of sharks evolved. It was during this period when the flexible upper jaw and dermal denticles began to appear in sharks. This adaptation proved to be highly effective and enable the sharks to rule...
the first island that the Mother of all Galapagos finches arrived on was San Cristobal, and over time the finches migrated to the other islands. As the population of the finches grew on the islands and resources became scarce, adaptations started to occur. To the ...