5-speed listening (Eggs - Level 2)

The shape of eggs helps birds fly well






Try  Eggs - Level 0  |  Eggs - Level 1  |   Eggs - Level 3

ESL resource book with copiable worksheets and handouts - 1,000 Ideas and Activities for Language Teachers / English teachers
See a sample

This useful resource has hundreds of ideas, activity templates, reproducible activities for …

  • warm-ups
  • pre-reading and listening
  • while-reading and listening
  • post-reading and listening
  • using headlines
  • working with words
  • moving from text to speech
  • role plays,
  • task-based activities
  • discussions and debates
and a whole lot more.

More Listening

20 Questions  |  Spelling  |  Dictation


Scientists think they know why birds' eggs are different shapes. Some are round, some are potato-shaped, and others are pointy. Two thousand years ago, Aristotle said flatter eggs had female chicks inside and rounder eggs contained male chicks. But he was wrong. A new study says that the shape of the egg depends on how well the female bird flies. A professor said she noticed that birds have evolved to lay eggs that have different shapes. They are all different in form, "everything from a spherical owl egg to a pointy sandpiper egg".

The professor and her team made a formula for the shape of different eggs. They looked at 50,000 eggs from 1,400 different bird species. They put the shape, length and height of the eggs into a computer. They also looked at how oval the eggs were. The researchers found that the birds with the most-oval-shaped eggs were the best fliers. The professor said: "We were shocked to see that one of the best explanations for egg shape [difference] was flight ability." Hummingbirds laid the most-oval-shaped eggs; owls laid the roundest eggs; and sea birds laid the pointiest eggs.

Other Levels

Try easier levels.

Eggs - Level 0  |  Eggs - Level 1  |   Eggs - Level 3

All Levels

This page has all the levels, listening and reading for this lesson.

← Back to the eggs  lesson.

Online Activities

Help Support This Web Site

  • Please consider helping Breaking News English.com

Sean Banville's Book

Thank You