Please enable JavaScript.

Coggle requires JavaScript to display documents.

Darwin 1859 - Coggle Diagram

- - - - New forms would immigrate and disturb the relations of the former inhabitants.
      - Immigration is unlikely if the country is an island or surrounded by a barrier
      - Species best adapted to their altered conditions would be preserved
      - No country has native inhabitants perfectly adapted to each other or the physical conditions they live in.
  - - - This could mean: Baby birds iwth hard, long beeks can push througha a hard shell, but those with small and soft beaks will survive under delicate shells.
  - - - One flower produces 1/2 of hte sex organs like the stamens , while the other produces pistils only.
        
        More complete seperation fo hte sexes of our plant would be advantageous on the principle of the dividion of labour, individuals with this tendency more and more increased, would be continually favoured or selected, until the complete seperation fo sexes.
    - - A kidn of sexual selection
      - bees-flowers can simulanteously benefit from each other.
- - - - Galapagos
        
        Only four of the archipelago's thirteen major islands have human populations: Santa Cruz, San Cristobal, Isabela and Floreana. In total, only three percent (or 300km2) of the Islands have human settlements, (the remaining 97% of the Galapagos Islands is maintained as national park).
        
        He concluded that the Galápagos finches had all evolved from a species from the mainland. He believed that the birds migrated to different islands, each with different food sources, and that nature selected for survival varieties best suited to exploit them.
        
        Species evolve separately on each island and do not interbreed. Many species show specific adaptation to their island’s features
        
        Preconception: Darwin learnt that all species are all part of a flawless plan from a divine creator
        
        Challenged :open_mouth:
        
        Cliptedon looked similar to the armadillo
        
        Causes of entire species extermination
        
        Where did new life forms come from? What happened to the ones that disappeared?
        
        Fossils documented both extinction and the evolution of species
        into modern ones that he could observe in living organisms around him: some fossils closely resembled living organisms.
        
        1831, Setting sail around the world:
        
        Naturalist aboard the HMS Beagle which left Plymouth, England
        
        At first, Even at the Galapagos Islands he did not fully appreciate the importance of the differences of different species on different islands and did not bother to classify them carefully, island by island.
        
        Reassesses: His findings
        
        After his return to England, Darwin realized the huge significance of what he had seen. As he put it in his 1837 notebook “Transmutation of Species”: “South American fossils – and species on Galapagos Archipelago. These facts origin (especially latter) of all my views.”
        
        Concerned by the religious implications of his
        findings.
        
        HMS Beagle arrived at G. Islands (natural laboratory for evolution)**in 1835**
- - - - Whole organization of the tree of life becomes plastic, man-made
      - The mutual relations between all organiz beings to each other and to their physical conditions in life are infinelty comples and close-fitting.
    - - Man relies on external and visible characteristics
        
        Man selects for his own good; Nature only for that of hte being which she tends.
        
        Man does not allow the most vigourous males to struggle for the females. He protects as far as his powers lie, until the season passes.
        
        "Fleeting"
      - Nature relies on usefullness, and survival cap. of characteristics
        
        More intricate: Every organ of life, every constitutional difference has an impact ont he whole machinery of life.
        
        Under nature the slightest different can preserve the species, while for man the modification must be prominent enought o catch his eye.
        
        Finitely better adapted to the conditions of life; Finer workmainship; Silent and insensible
        
        Progress is insensible until the long lapse of ages has passed.
        
        Smooth-kinned fruits suffer more from a beetle than those without them.
    - - Between wolves of 2 kinds, Man would the wolf breed that best uits his needs, without giving much thought to the m