natural selection
natural selection is the process in nature by which, according to Darwin's theory, only the organisms best adapted to their environment tend to survive and transmit their genetic characters in increasing numbers to succeeding generations while those less adapted tend to be eliminated
Describe natural selection and how it affects species.
What is biodiversity, and how is a lack of biodiversity leading to species extinction?
"Most of the fish we eat, most of the fish we know, could be gone in the next fifty years" (Kurlansky XI). A World Without Fish starts out with this statement. This quote is what the whole book is about; the possible extinction of fish, why this could happen, and what we as humans can do about this. The introduction chapter of this book contains very important and interesting information on fish. Mark Kurlansky mentions the organism organization system in the introduction chapter as well: Kingdom, Phylum, Class, Order, Family, Genus, and Species. He also mentions some thoughts that Charles Darwin recorded in his book On the Origin of Species. Kurlansky also pondered why humans have no trouble killing animals that are part of our own Kingdom, Phylum, and Class but not of our own species. He says that vegetarians do not do this, however they also do not care about killing organisms in other Kingdoms as well. The ideas in the introduction are very interesting and create a spark for the fire that is A World Without Fish.
Credits:
Created with images by Peaches&Cream - "Clown fish" • 27707 - "tuna fish tuna fish" • nilsrinaldi - "Yellow-fin tuna at sunset" • izik - "Salmon face" • flyupmike - "fish cod smoked" • John Loo - "Decapitation" • PublicDomainPictures - "fish herring smoked" • Hans - "sardines fish swarm" • andreas160578 - "herring fish port" • greekfood-tamystika - "salmon fish grilled fish" • greekfood-tamystika - "sardines fish lunch" • pompi - "fish grill grilling" • Naveg - "Dinner" • whologwhy - "GRILLED SASHA FISH" • sharonang - "delicious yummy lunch" • Raelene G - "Yummy fish" • shannonpatrick17 - "Catfish Corner" • marioanima - "Mixed fish plate" • Tama66 - "wheel turn carry" • Children's Bureau Centennial - "LC-DIG-nclc-02100 Girls Yarn Mill" • skeeze - "vintage child labor textile" • dotcompals - "Kids" • maxlkt - "little girl praying people" • Tetsumo - "kids" • jackol - "Kids" • WikiImages - "charles robert darwin scientists naturalist" • oom_endro - "fern leaf roll" • Karen_O'D - "coral" • brownpau - "Coral" • eutrophication&hypoxia - "Coral Reef, Florida" • Elias Levy - "Coral" • axistravel - "diving ocean coral" • FamilyRalph - "Blue coral" • malfet_ - "Coral reef" • brownpau - "Coral" • Ruth and Dave - "Coral in the Red Sea" • NOAA's National Ocean Service - "Coral" • diongillard - "Coral 1" • arthurmlee1 - "Brain Coral Platygyra" • Christian Steen - "Diving Maldives, 2009" • Pexels - "anemone aquarium art" • tpsdave - "anemone sea life sea" • morebyless - "Numbers" • Pexels - "coast ocean rocks" • gambier20 - "Rainbow pollution" • obbino - "POLLUTION" • cocoparisienne - "polar bear iceberg ice floe"