hatch
Definition
Hatching is the process of a baby animal emerging from its egg. The hatching process is controlled by a number of factors, including the temperature of the egg, the amount of oxygen in the egg, and the development of the baby animal. The hatching process typically takes several days or weeks, depending on the species of animal.
The hatching process is different for different species of animals. For example, bird eggs typically hatch from the top down, while reptile eggs typically hatch from the bottom up.
The hatching process can be dangerous for baby animals. For example, baby birds may be attacked by predators while they are still in the egg.
Some animals, such as crocodiles, help their babies hatch from the egg. Crocodiles will break the eggshell with their teeth and help their babies to the surface of the water.
How can the word be used?
The bird hatched its eggs in a nest.
Different forms of the word
Noun: hatch.
Adjective: hatchable.
Verb: hatch.
Etymology
The Old English word "haccian", which means "to cut or hew". This is the origin of the verb "to hatch", which means to bring forth young from an egg.
Question
When might something hatch?
AQA Science Exam Question and Answer
Question:
Explain the process of hatching in oviparous animals and its significance in their life cycle.
Answer:
Hatching is a pivotal stage in the life cycle of oviparous animals, which includes various species of birds, reptiles, and some fish. It is the emergence of a young organism, typically referred to as a hatchling, from an egg. The process begins with the embryo developing within the egg, obtaining nourishment from the yolk. As the embryo grows, it consumes the yolk, providing essential nutrients for its development.
Hatching involves a series of complex physiological changes. The developing organism secretes enzymes that weaken the eggshell. Eventually, the hatchling uses its specialised structures, such as an egg tooth, to create a small opening in the shell. Through this opening, the hatchling emerges, often aided by physical movements and struggles.
Hatching marks the transition from a protected, enclosed environment to an independent life outside the egg. It is a critical moment, as the hatchling must quickly adapt to its surroundings, find food, and avoid predators. Hatching also allows for the young organism to engage in behaviours essential for survival, such as seeking shelter and thermoregulation.
In conclusion, hatching is a fundamental process in the life cycle of oviparous animals, enabling the transition from embryonic development within the egg to an autonomous and self-sufficient existence in the external environment.