Tree of life or Universal Tree of Life is a metaphor, model and research tool used to explore the evolution of life and describe the relationships between organisms, both living and extinct, as described in a famous passage in Charles Darwin’s On the Origin of Species (1859).
The affinities of all the beings of the same class have some-
times been represented by a great tree. I believe this simile
largely speaks the truth. — Charles Darwin
Tree diagrams originated in the medieval era to represent genealogical relationships. Phylogenetic tree diagrams in the evolutionary sense date back to at least the early 19th century. The term phylogeny for the evolutionary relationships of species through time was coined by Ernst Haeckel, who went further than Darwin in proposing phylogenic histories of life. In contemporary usage, tree of life refers to the compilation of comprehensive phylogenetic databases rooted at the last universal common ancestor of life on Earth. — Wikipedia
Phylogenetics is the study of the evolutionary history and relationships among or within groups of organisms. These relationships are determined by phylogenetic inference methods that focus on observed heritable traits, such as DNA sequences, protein amino acid sequences, or morphology. The result of such an analysis is a phylogenetic tree—a diagram containing a hypothesis of relationships that reflects the evolutionary history of a group of organisms.– Wikipedia
Phylogenetics (bioRxiv: Preprint Server for Biology, Cold Spring Harbor Laboratory)
Phylogenetics (EurekaAlert, American Association for the Advancement of Science)
Phylogenetics (Science Daily)
Phylogenetics (Science News)
Phys.org - latest science and technology news stories Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine.
- Decades-old crustaceans coaxed from lake mud give...on February 2, 2023 at 10:01 pm
Human actions are changing the environment at an unprecedented rate. Plant and animal populations must try to keep up with these human-accelerated changes, often by trying to rapidly evolve tolerance to changing conditions.
- Tracing the evolution of wheat spikes since the...on February 2, 2023 at 7:43 pm
About 12,000 years ago, the Neolithic revolution radically changed the economy, diet and structure of the first human societies in the Fertile Crescent of the Near East. With the beginning of the cultivation of cereals, such as wheat and barley, and the domestication of animals, the first cities emerged in a new social context marked by a productive economy.
- How species partnerships evolve to become...on February 2, 2023 at 1:58 pm
Symbiotic relationships are everywhere in nature. In the soil, for example, mycorrhizal fungi enhance water and nutrient absorption for plants while feeding on sugars their roots release. In another classic mutualism, ants find food and shelter in specialized structures that acacia trees grow; the insects, in turn, defend the trees from being eaten by other hungry critters.
- Quails could be the unknown reservoir of Tuscany...on February 1, 2023 at 8:57 pm
Quails could be the unknown reservoir of the Toscana virus (TOSV) and the Sandfly Fever Sicilian virus (SFSV), mosquito-borne pathogens that can infect domestic animals and also cause disease in humans. This conclusion is drawn from a study published in the journal Frontiers in Microbiology, and led by Jordi Serra-Cobo, professor at the Faculty of Biology and the Biodiversity Research Institute (IRBio) of the University of Barcelona, and Remi Charrel, from the Aix-Marseille University (France).
- Ancient fossils shed new light on evolution of...on February 1, 2023 at 12:00 am
Ancient fossils have shed new light on a type of sea worm linking it to the time of an evolutionary explosion that gave rise to modern animal life.
Here are links to pages about closely related subjects.
Tree of Life
Prokaryote Archaea, Bacteria
Eukaryote Protist, Fungi, Algae, Protozoa (Tardigrade)
Plant Flower, Tree
Cnidaria Coral, Jellyfish
Cephalopod Cuttlefish, Octopus
Crustacean Lobster, Shrimp
Arachnid Spider, Scorpion
Insect Ant, Bee, Beetle, Butterfly
Fish Seahorse, Ray, Shark
Amphibian Frog, Salamander
Reptile Turtle, Tortoise, Dinosaur
Bird Penguin, Ostrich, Owl, Crow, Parrot
Mammal Platypus, Bat, Mouse, Rabbit, Goat, Giraffe, Camel, Horse, Elephant, Mammoth
Walrus, Seal, Polar Bear, Bear, Panda, Cat, Tiger, Lion, Dog, Wolf
Cetacean Whale, Dolphin
Primate Monkey, Chimpanzee, Human