Zoology

Discover the animal kingdom — from classification and symmetry to behavior, locomotion, and body systems.

Animal Adaptations

Explore how animals evolve structural, physiological, and behavioral traits to survive in diverse environments.


Learn more →
Symmetry and Body Plans

Learn how body symmetry and structural organization define major animal groups and influence function and movement.


Learn more →
Locomotion in Animals

Discover how animals move — from crawling and flying to swimming — using specialized structures and muscle coordination.


Learn more →
Introduction to Osmoregulation

Explore how organisms regulate water and solute balance to maintain internal stability, from single-celled life to complex animals.


Learn more →
Animal Adaptations for Osmoregulation

Discover the diverse strategies animals use to survive in freshwater, saltwater, and dry environments by regulating water and salt levels.


Learn more →
Reproduction and Development

Understand how animals reproduce and develop, from fertilization to embryonic growth and birth.


Learn more →
Life Cycles and Metamorphosis

Explore the stages animals pass through from birth to adulthood, including complete and incomplete metamorphosis.


Learn more →
Animal Behaviour

Dive into how animals interact with their environment, communicate, learn, and survive through instinct and experience.


Learn more →
Feeding and Nutrition

Study how animals obtain, process, and utilize food, from filter feeders to predators, and herbivores to omnivores.


Learn more →
🎯

Ready to take IJSO-style zoology practice questions?

Apply your knowledge with our collection of IJSO-style zoology problems.

View Zoology Practice Questions
📝

Ready to take IJSO-style zoology mock tests?

Challenge yourself with our collection of IJSO-style mock tests in zoology, designed to test your problem-solving skills and understanding.

View Zoology Mock Tests