amphibians: A bunch of animals that features frogs, salamanders and caecilians. Amphibians have backbones and may breathe by way of their pores and skin. Not like reptiles, birds and mammals, unborn or unhatched amphibians don’t develop in a particular protecting sac known as an amniotic sac.
anatomy: (adj. anatomical) The research of the organs and tissues of animals. Or the characterization of the physique or elements of the physique on the premise of construction and tissues. Scientists who work on this discipline are referred to as anatomists.
biologist: A scientist concerned within the research of dwelling issues.
caecilian: A kind of amphibian that has no legs. Caecilians have ring-shaped folds of pores and skin known as annuli, small eyes lined by pores and skin and generally bone, and a pair of tentacles. Most of them stay underground within the soil, however some spend their whole lives in water.
evolution: (v. to evolve; adj. evolutionary) A course of by which species endure modifications over time, often by way of genetic variation and pure choice. These modifications often end in a brand new sort of organism higher suited to its atmosphere than the sooner sort. The newer sort isn’t essentially extra “superior,” simply higher tailored to the actual situations during which it developed. Or the time period can confer with modifications that happen as some pure development inside the non-living world (comparable to laptop chips evolving to smaller gadgets which function at an ever quicker pace).
evolutionary biologist: Somebody who research the adaptive processes which have led to the range of life on Earth. These scientists can research many various topics, together with the microbiology and genetics of dwelling organisms, how species change to adapt, and the fossil document (to evaluate how numerous historical species are associated to one another and to modern-day kin).
fats: A pure oily or greasy substance occurring in crops and in animal our bodies, particularly when deposited as a layer below the pores and skin or round sure organs. Fats’s major function is as an power reserve. Fats additionally is a crucial nutrient, although it may be dangerous if consumed in extreme quantities.
gland: A cell, a gaggle of cells or an organ that produces and discharges a substance (or “secretion”) to be used elsewhere within the physique or in a physique cavity, or for elimination from the physique.
hatchling: A younger animal that just lately emerged from its egg.
herpetologist: A scientist who works on the biology of reptiles and amphibians.
lactation: (v. lactate) A launch of milk by feminine mammals after giving start. This high-protein, fatty fluid provides their younger the vitamins wanted to gas their postnatal development.
litter: (in zoology) A bunch of younger animals born on the similar time to the identical mom.
mammal: A warm-blooded animal distinguished by the possession of hair or fur, the secretion of milk by females for feeding their younger, and (usually) the bearing of stay younger.
mass: A quantity that reveals how a lot an object resists dashing up and slowing down — principally a measure of how a lot matter that object is made out of.
ovary: (in animals) A feminine reproductive organ that produces eggs and that secretes a number of the hormones wanted to manage the event of secondary sex-related traits (comparable to breast improvement in human females). Most feminine mammals have a pair of ovaries.
oviduct: A tube present in feminine animals. The feminine’s eggs go by way of the tube or keep within the tube and grow to be younger animals.
rainforest: Dense forest wealthy in biodiversity present in tropical areas with constant heavy rainfall.
sibling: Certainly one of a number of offspring that share the identical dad and mom.
species: A bunch of comparable organisms able to producing offspring that may survive and reproduce.
system: A community of elements that collectively work to realize some operate. As an illustration, the blood, vessels and coronary heart are major elements of the human physique’s circulatory system. Equally, trains, platforms, tracks, roadway indicators and overpasses are among the many potential elements of a nation’s railway system. System may even be utilized to the processes or concepts which can be a part of some methodology or ordered set of procedures for getting a process accomplished.
vent: (n.) A gap by way of which gases or liquids can escape.
womb: One other identify for the uterus, the organ in mammals during which a fetus grows and matures in preparation for start.
