How Animals Hear Differently

About this printable How Animals Hear Differently science reading passage, NGSS-aligned (Grades 3-5)

This engaging Grade 4 science reading passage explores how different animals hear differently based on their unique ear structures and hearing adaptations. Students learn about owl ears that help pinpoint sounds in the dark, elephant hearing that detects low-frequency sounds over long distances, and bat echolocation for navigation and hunting. The passage introduces key vocabulary including frequency, echolocation, and asymmetrical ears while explaining how these adaptations help animals survive in their environments. Aligned to NGSS standard 4-LS1-1 (structures and functions in organisms), this audio-integrated passage helps students understand that animals have internal and external structures that function to support survival, growth, behavior, and reproduction. The passage includes simplified differentiated versions, Spanish translations, comprehension activities, writing prompts, and graphic organizers to support diverse learners in building foundational understanding of animal adaptations and sensory structures.

Written by Workybooks TeamPublished by Workybooks

Sample passage and quiz from How Animals Hear Differently

Bat finding moth with sound. — Bats hunt using echolocation.

Animals have ears and hearing structures that are adapted to help them survive in their environments. These special structures help animals find food, avoid danger, and communicate with each other.

Owls have asymmetrical ears—ears that are not the same on both sides of their head. One ear opening is higher than the other. This helps owls pinpoint the exact location of sounds when hunting in the dark. When a mouse moves on the ground, sound reaches each ear at slightly different times, telling the owl exactly where to fly.

Elephants can hear very low sounds called infrasound—sounds so low that humans cannot hear them. These low frequency sounds (how many sound waves happen per second) travel long distances through the ground and air. Elephants use infrasound to communicate with other elephants that are miles away.

Bats use echolocation to navigate and find food in complete darkness. They send out high-pitched sounds and listen for the echoes—sounds that bounce back from objects. By listening to how long it takes for echoes to return, bats can tell where objects are and how far away they are. This is similar to how you can tell a room is empty by how your voice echoes.

Many animals can hear frequencies that humans cannot detect. Dogs hear higher sounds than humans, while whales hear lower sounds. Each animal's hearing is perfectly suited to its needs.

Interesting Fact: Some moths have developed special hearing that can detect the echolocation calls of bats, allowing them to dodge and escape before being caught!