Tree of Life
Plant Flower, Tree
Invertebrate Octopus, Ant, Bee, Butterfly, Spider, Lobster
Vertebrate Fish, Seahorse, Ray, Shark, Frog, Turtle, Tortoise, Dinosaur
Bird, Ostrich, Owl, Crow, Parrot
Mammal Bat, Rabbit, Giraffe, Camel, Horse, Elephant, Mammoth
Whale, Dolphin, Walrus, Seal, Polar Bear, Bear, Cat, Tiger, Lion, Dog, Wolf
Monkey, Chimpanzee, Human
These are organized by a classification scheme developed exclusively for Cosma. More…
life : an organismic state characterized by capacity for metabolism, growth, reaction to stimuli, and reproduction — Webster
Life is a characteristic distinguishing physical entities having biological processes, such as signaling and self-sustaining processes, from those that do not, either because such functions have ceased, or because they never had such functions and are classified as inanimate. Various forms of life exist, such as plants, animals, fungi, protists, archaea, and bacteria. The criteria can at times be ambiguous and may or may not define viruses, viroids, or potential artificial life as “living”. Biology is the primary science concerned with the study of life, although many other sciences are involved.
The definition of life is controversial. The current definition is that organisms maintain homeostasis, are composed of cells, undergo metabolism, can grow, adapt to their environment, respond to stimuli, and reproduce. However, many other biological definitions have been proposed, and there are some borderline cases of life, such as viruses. Properties common to all organisms include the need for certain core chemical elements to sustain biochemical functions. — Wikipedia
Biosphere also known as the ecosphere, is the worldwide sum of all ecosystems. It can also be termed the zone of life on Earth, a closed system (apart from solar and cosmic radiation and heat from the interior of the Earth), and largely self-regulating. By the most general biophysiological definition, the biosphere is the global ecological system integrating all living beings and their relationships, including their interaction with the elements of the lithosphere, geosphere, cryosphere, hydrosphere, and atmosphere. — Wikipedia
Life sciences comprise the branches of science that involve the scientific study of life and organisms – such as microorganisms, plants, and animals including human beings. — Wikipedia
Biology is the natural science that studies life and living organisms, including their physical structure, chemical processes, molecular interactions, physiological mechanisms, development and evolution. Despite the complexity of the science, there are certain unifying concepts that consolidate it into a single, coherent field. Biology recognizes the cell as the basic unit of life, genes as the basic unit of heredity, and evolution as the engine that propels the creation and extinction of species. Living organisms are open systems that survive by transforming energy and decreasing their local entropy to maintain a stable and vital condition defined as homeostasis. — Wikipedia
Biosphere: A Big Ball of Life (Geography4Kids)
Biology Basics (Biology4Kids)
Life Sciences (TED Ed)
Great Sites for Kids (ALA)
Science Projects in Biology, Natural History and Agriculture (Library of Congress)
EurekAlert! - Biology The premier online source for science news since 1996. A service of the American Association for the Advancement of Science.
- Extreme heat, dry summers main cause of tree...on July 26, 2021 at 4:00 am
(University of Colorado at Boulder) Even in the absence of bark beetle outbreaks and wildfire, trees in Colorado subalpine forests are dying at increasing rates from warmer and drier summer conditions, found recent University of Colorado Boulder research.
- New US and German collaboration aims to produce...on July 26, 2021 at 4:00 am
(University of Illinois College of Liberal Arts & Sciences) The US National Science Foundation and the German Research Foundation have joined forces to award the University of Illinois Urbana-Champaign and Technical University of Darmstadt a three-year $720,000 research grant to explore opportunities to more efficiently produce green hydrogen, a clean and renewable source of energy.
- New study sheds light on function of sex...on July 25, 2021 at 4:00 am
(Iowa State University) A new study led by an Iowa State University scientist sheds light on how organisms have evolved to address imbalances in sex chromosomes. The study looks at a species of softshell turtle, but the results could help to illuminate an important evolutionary process in many species. The research centers on a process known as sex chromosome dosage compensation.
- Reverse optogenetic tool developedon July 23, 2021 at 4:00 am
(Ruhr-University Bochum) A new optogenetic tool, a protein that can be controlled by light, has been characterized by researchers at Ruhr-Universität Bochum. They used an opsin - a protein that occurs in the brain and eyes - from zebrafish and introduced it into the brain of mice. Unlike other optogenetic tools, this opsin is not switched on but rather switched off by light. Experiments also showed that the tool could be suitable for investigating changes in the brain that are responsible for […]
- The impact of climate change on Kenya's Tana...on July 23, 2021 at 4:00 am
(University of East Anglia) Many species within Kenya's Tana River Basin will be unable to survive if global temperatures continue to rise as they are on track to do - according to new research from the University of East Anglia. A new study published in the journal PLOS ONE outlines how remaining within the goals of the Paris Agreement would save many species. The research also identifies places that could be restored to better protect biodiversity and contribute towards global ecosystem […]
Biology News - Evolution, Cell theory, Gene theory, Microbiology, Biotechnology Read the latest science news from Phys.org on biology, evolution, microbiology, biotechnology
- Uproar in Greece as mascot seal killed in...on July 25, 2021 at 8:15 pm
A young endangered monk seal who became the mascot of a Greek island in a marine protected area after surviving a cyclone and endearing himself to locals has been killed, sparking an uproar.
- Coffee froths to new highs as Brazil frost hits...on July 25, 2021 at 8:24 am
Coffee prices surged this week to multi-year peaks, extending stellar gains this year after frost damaged crops in the world's biggest producer Brazil.
- Unvaccinated snow leopard at San Diego Zoo...on July 25, 2021 at 8:22 am
An unvaccinated snow leopard at the San Diego Zoo has contracted COVID-19.
- Baby orca dies in New Zealand after fruitless...on July 24, 2021 at 8:26 am
Toa, the baby orca who captured hearts after he was found stranded in New Zealand waters, has lost his fight for survival, conservationists confirmed Saturday.
- Sharks, lies, and videotape: Scientists document...on July 23, 2021 at 9:01 pm
Shark Week is many things. First and foremost, it's a week of shark-themed documentary programming on the Discovery Channel. Now in its 33rd year, it's the longest-running cable event in history. It's the biggest audience that marine biologists and ocean conservationists get, attracting millions of viewers who might otherwise not ever think about sharks at all. It's a stage that has launched careers of shark scientists and inspired many others to pursue jobs as ocean scientists.
Scientific American Science news and technology updates from Scientific American
- Hardy Microbes Hint at Possibilities for...by Brianne Palmer on July 21, 2021 at 10:45 am
Studies of extreme ecosystems on Earth can guide the search for Martian life and may reveal the fundamental limits of biology -- Read more on ScientificAmerican.com
- Behold the 'Borg': Massive DNA Structures Perplex...by Amber Dance, Nature magazine on July 20, 2021 at 3:00 pm
Researchers say they have discovered unique and exciting DNA strands in the mud; others are not sure of their novelty -- Read more on ScientificAmerican.com
- Play Is Serious Business for Elephantsby Caitlin O'Connell on July 20, 2021 at 1:30 pm
Young dogs, apes and other animals develop skills needed to survive and reproduce -- Read more on ScientificAmerican.com
- Animal Play Is Delightfully Meaningfulby Laura Helmuth on July 20, 2021 at 1:00 pm
Brown dwarfs, stuttering, quantum chemistry, and more -- Read more on ScientificAmerican.com
- The Idea That Trees Talk to Cooperate Is...by Kathryn Flinn on July 19, 2021 at 2:00 pm
It’s a romantic notion, but pretending they’re like humans could actually harm the cause of conservation -- Read more on ScientificAmerican.com