Organism

Insect

Insects (from Latin insectum) are pancrustacean hexapod invertebrates of the class Insecta. They are the largest group within the arthropod phylum. Insects have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. Insects are the most diverse group of animals; they include more than a million described species and represent more than half of all known living organisms. The total number of extant species is estimated at […]

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Biology

Biology is the scientific study of life and living organisms. It examines structure, function, growth, origin, evolution, distribution, and interactions of living systems—from molecular machinery inside cells to planetary-scale ecosystems. As one of the core natural sciences, biology integrates chemistry, physics, mathematics, and computational methods to explain how life operates and evolves. Modern biology is

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Organism

In biology, an organism is any organic, living system that functions as an individual entity. All organisms are composed of cells (cell theory). Organisms are classified by taxonomy into groups such as multicellular animals, plants, and fungi; or unicellular microorganisms such as protists, bacteria, and archaea. All types of organisms are capable of reproduction, growth

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Zond 5

Zond 5 was a spacecraft of the Soviet Zond program. In September 1968 it became the second spaceship to travel to and circle the Moon, and the first to return safely to Earth. Zond 5 carried the first terrestrial organisms to the vicinity of the Moon, including two tortoises, fruit fly eggs, and plants. The tortoises underwent

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Butterfly

Butterflies are insects in the macrolepidopteran clade Rhopalocera from the order Lepidoptera, which also includes moths. They are famous for their four-stage life cycle, large, often brightly colored wings, and conspicuous, fluttering flight. 🌾 As of 2026, butterflies remain vital bioindicators of ecosystem health, with scientists closely monitoring their migration and population patterns to study

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Species

A species is the fundamental unit of biological classification, representing a group of organisms that share common characteristics and, under natural conditions, are capable of interbreeding to produce fertile offspring. The concept of species lies at the core of taxonomy, evolutionary biology, ecology, and conservation science. Although the term appears straightforward, defining what constitutes a

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