Reactions to On the Origin of Species is also right". The "Saturday Review" reported that "The controversy excited by the appearance of Darwin's remarkable work on the "Origin of Species" has passed beyond the bounds of the study and lecture-room into the drawing-room and the public street." The older generation of Darwin's tutors were rather negative, and later in May he told his cousin Fox that "the attacks have been falling thick & heavy on my now case-hardened hide.— Sedgwick & Clarke opened regular battery on me lately at Cambridge Phil. Soc. & dear old Henslow defended me in grand style, saying that my investigations were perfectly
On the Origin of Species America, Africa, and Australia all have regions with similar climates at similar latitudes, but those regions have very different plants and animals. The species found in one area of a continent are more closely allied with species found in other regions of that same continent than to species found on other continents. Darwin noted that barriers to migration played an important role in the differences between the species of different regions. The coastal sea life of the Atlantic and Pacific sides of Central America had almost no species in common even though the Isthmus of Panama was only a few