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.
How learning about fish can help us save the...
on February 17, 2020 at 5:00 am
(Field Museum) They might not be as popular as jaguars and parrots, but fish hold the key to lots of the Amazon rainforest's secrets. Studying the different kinds of fish living in the region's lakes and rivers helps scientists understand how rainforest ecosystems are connected. An investigation of fish populations is helping scientists make a case that protecting one tiny corner of the Guiana Shield can help protect rivers and biodiversity across the Amazon.
Researchers create new tools to monitor water...
on February 16, 2020 at 5:00 am
(Northwestern University) A wife-husband team will present both high-tech and low-tech solutions for improving water security at this year's American Association for the Advancement of Science (AAAS) annual meeting in Seattle on Sunday, Feb. 16. Northwestern University's Sera Young and Julius Lucks come from different ends of the science spectrum but meet in the middle to provide critical new information to approach this global issue.
The paradox of dormancy: Why sleep when you can...
on February 15, 2020 at 5:00 am
(Singapore University of Technology and Design) Why do predators sometimes lay dormant eggs -- eggs which are hardy, but take a long time to hatch, and are expensive to produce? That is the question that SUTD researchers set out to answer in a recent paper.
Key modifier identified in large genetic deletion...
on February 14, 2020 at 5:00 am
(Penn State) Neurodevelopmental disorders, including schizophrenia and autism, likely result from complex interactions that modify the effects of individual genes, according to new research.
University of Montana researchers study how birds...
on February 14, 2020 at 5:00 am
(The University of Montana) Every social network has its fake news. And in animal communication networks, even birds discern the trustworthiness of their neighbors, a study from the University of Montana suggests.
Biology News - Evolution, Cell theory, Gene theory, Microbiology, Biotechnology Phys.org provides the latest news on biology, evolution, microbiology, biotechnology
Invasive bug found feeding on avocado plants in...
on February 16, 2020 at 11:19 am
An invasive bug was discovered feeding on avocado leaves across the state of Hawaii and was most recently found on Maui plants in retail outlets, entomologists said.
New CRISPR-based tool can probe and control...
on February 15, 2020 at 9:41 am
Every cell in our body has a computer-like control system that sends biological signals through thousands of circuits to monitor the cell's needs and regulate its responses.
Physically producing computer-generated...
on February 14, 2020 at 11:30 pm
The molecular blueprint of life is stored in DNA within the genome. The digital revolution in biology, driven by DNA sequencing, enables scientists to read the genomes of the many microbes and multicellular organisms that populate our world. Today, DNA sequences of over 200,000 microbial genomes are deposited in digital genome databases and have exponentially increased the understanding of how DNA programs living systems. Using this incredible treasure trove of molecular building blocks, […]
To help wildlife move, researchers map both...
on February 14, 2020 at 10:09 pm
Wildlife need to move to survive: to find food, reproduce and escape wildfires and other hazards. Yet as soon as they leave protected areas like national forests or parks, they often wind up on a landscape that is very fragmented in terms of natural boundaries and human ones.
Researchers study how birds retweet news
on February 14, 2020 at 6:54 pm
Every social network has its fake news. And in animal communication networks, even birds discern the trustworthiness of their neighbors, a study from the University of Montana suggests.
Scientific American Science news and technology updates from Scientific American
'Fight or Flight' Nerves Make Mice Go Gray
by Karen Hopkin on February 15, 2020 at 3:45 pm
A new study in mice concludes stress can cause gray hair—and credits overactive nerves with the change in hue. Karen Hopkin reports. -- Read more on ScientificAmerican.com
Here's the One Thing Not to Do on Valentine's Day
by Sinaia Keith Lang on February 13, 2020 at 8:00 pm
Avoid the example of animals that practice semelparity and don’t murder your mate -- Read more on ScientificAmerican.com
Kirk, Spock and Darwin
by Steve Mirsky on February 13, 2020 at 12:20 am
Duke University evolutionary biologist Mohamed A. F. Noor talks about his book Live Long and Evolve: What Star Trek Can Teach Us about Evolution, Genetics, and Life on Other Worlds. -- Read more on ScientificAmerican.com
Feral Dogs Respond to Human Hand Cues
by Susanne Bard on February 11, 2020 at 6:26 pm
Most feral dogs that did not run away from humans were able to respond to hand cues about the location of food—even without training. -- Read more on ScientificAmerican.com
How Does the New Coronavirus Compare with the Flu?
by Rachael Rettner on February 7, 2020 at 3:15 pm
The flu has already caused about 10,000 deaths this season in the U.S. alone -- Read more on ScientificAmerican.com