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…
flower : : the specialized part of an angiospermous plant that occurs singly or in clusters, possesses whorls of often colorful petals or sepals, and bears the reproductive structures (such as stamens or pistils) involved in the development of seeds and fruit : blossom — Webster
Flower, sometimes known as a bloom or blossom, is the reproductive structure found in plants that are floral (plants of the division Magnoliophyta, also called angiosperms). The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs. Flowers may facilitate outcrossing (fusion of sperm and eggs from different individuals in a population) or allow selfing (fusion of sperm and egg from the same flower). Some flowers produce diaspores without fertilization (parthenocarpy). Flowers contain sporangia and are the site where gametophytes develop. Many flowers have evolved to be attractive to animals, so as to cause them to be vectors for the transfer of pollen. After fertilization, the ovary of the flower develops into fruit containing seeds. In addition to facilitating the reproduction of flowering plants, flowers have long been admired and used by humans to beautify their environment, and also as objects of romance, ritual, religion, medicine and as a source of food. — Wikipedia
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.
NASA fosters innovative ways to understand...
on June 4, 2020 at 10:54 am
The yellow-billed cuckoo has soft brown wings, a white belly, a long tail with black and white spots, and is running out of places to live. The cuckoo's population in its native breeding range in the eastern United States has declined in recent decades due to urbanization, heat waves and other factors. Climate change will likely further reduce its suitable habitat.
Scientists discover what an armored dinosaur ate...
on June 2, 2020 at 11:00 pm
More than 110 million years ago, a lumbering 1,300-kilogram, armor-plated dinosaur ate its last meal, died, and was washed out to sea in what is now northern Alberta. This ancient beast then sank onto its thorny back, churning up mud in the seabed that entombed it—until its fossilized body was discovered in a mine near Fort McMurray in 2011.
Researchers identify the process behind the...
on June 2, 2020 at 10:33 am
Typically, each somatic cell in an organism holds the same amount of DNA. However, researchers have, for the first time, shed light on a process that leads to tissue-specific differences in DNA content in plants. With an unusually high efficiency rate of 100%, this programmed chromosome elimination mechanism could become a valuable genetic tool for plant breeding or medical applications.
Urban green spaces can help pollinators: new...
on June 1, 2020 at 2:48 pm
Bee populations are experiencing a global decline as a result of climate change, parasites and pathogens, and pesticide exposure, as well as a lack of foraging resources due to human land use. The good news is that gardens and parks can be valuable sites for providing foraging resources to these urban pollinator communities because of their low pesticide use, complex landscapes, and protected environments.
Study shows erosion of ozone layer responsible...
on May 27, 2020 at 6:00 pm
Researchers at the University of Southampton have shown that an extinction event 360 million years ago, that killed much of the Earth's plant and freshwater aquatic life, was caused by a brief breakdown of the ozone layer that shields the Earth from damaging ultraviolet (UV) radiation. This is a newly discovered extinction mechanism with profound implications for our warming world today.
Patterns in crop data reveal new insight about...
on May 27, 2020 at 3:39 pm
A recently published study led by Iowa State University scientists applied a fresh perspective to vast amounts of data on rice plants to find better ways to predict plant performance and new insights about how plants adapt to different environments.
The chemical messenger that controls flower power
on May 27, 2020 at 1:22 pm
The dazzling floral displays of early spring are starting to draw to a close. But wily gardeners know that they can keep plants in flower for longer by removing fruit and seeds as soon as they form.
Birds, bees and butter: New study shows...
on May 26, 2020 at 7:19 am
Shea yields are likely to benefit from a diversity of trees and shrubs in parkland habitats in West Africa, according to a new study led by scientists from Trinity College Dublin. The findings have important implications for managing a crop that is typically harvested and sold by women in rural areas, and which helps finance education for children.
Parasitic wasp discovery offers chemical-free...
on May 22, 2020 at 4:16 pm
A species of parasitic wasp discovered by chance could provide growers with a chemical-free way of controlling a major pest.
Bumblebees speed up flowering by piercing plants
on May 22, 2020 at 2:02 pm
When pollen is in short supply, bumblebees damage plant leaves in a way that accelerates flower production, as an ETH research team headed up by Consuelo De Moraes and Mark Mescher has demonstrated.