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Survival Strategies

Survival strategies are ways in which an animal survives (and hopefully thrives!) in their environment.

Every species has an impressive and unique way of living on our planet. Some animals can swim, some can fly, and others can do both. Some animals move very slowly and others incredibly fast. Some live in water while others live in air. How the animals look and behave determines how they live, forage for food, attract mates, build their shelter, and defend themselves from the elements and predators. In other words, they have special features that help them survive.

In this lesson, students will explore the special survival features of a number of different animals, through a series of demonstrations and activities. 

LIST OF ACTIVITIES:

Feathers, Fur, or Fin?
Animals Extraordinaire!
Sound and Smell
Picky Eaters
Animal Restaurant
Humans vs. Wild Animals
Create a Creature 
Carrying Capacity

Objectives

  • Compare and contrast human features with the features of other animals.
    Compare the structures and behaviours of different animals in different habitats.
    Assess survival needs and interactions between animals and their environments.
    Describe the processes of natural selection and evolution.
    Describe connections between physical/structural adaptations and survival.

Materials

Background

Individual animals may have features that make it easier for them to survive, find food and shelter, and reproduce in their particular surroundings. Ecology is the science that examines the relationships between living things and their surroundings. Their surroundings make up their habitat and include biotic factors (living things like plants and animals) and abiotic factors (non-living things like weather, light, water, and soil).

Competition between animals happens when some resource (often food or shelter) is limited. Having special features means that animals can live in different places or find different foods. This specialization can be obvious (found in the physical appearance of the animal) or it can be “hidden” under the skin. Such specializations that are not obvious to the eye often exist because that animal lives in a particularly unique habitat, like a fish’s ability to breathe underwater; their gills enable them to take oxygen out of the water.

Vocabulary

abiotic Non-living factors in an animal’s habitat such as weather, water, soil, light, and radiation.
biodiversity The variety of life on Earth, including genetic variety within a species. It refers to the wide variety of ecosystems and living things: animals, plants, their habitats, and their genes.
biotic Living organisms in an animal’s habitat.
carrying capacity – The maximum population size of a species that a habitat can sustain indefinitely.
ecological niche A species’ role in its habitat. No two species have the same niche. Each species has a specific combination of food choice, foraging method, daily schedule, predators, competitors, and shelter. Every species interacts with the biotic and abiotic elements present in a unique way.
ecology The study of the relationships between living things and their environment.
ecosystem The interconnectedness of biotic and abiotic factors in a specified area.
forage To search for and gather food.
genetic variation Variation in traits within or among a species. 
habitat The natural environment that surrounds and is used by a species population.
natural selection A process resulting in the survival of those individuals from a population of animals or plants that are best suited to the prevailing environmental conditions. The survivors tend to produce more offspring than those less well suited, so that the characteristics of the population change over time.
population All the organisms that both belong to the same species and live in the same geographical area. 
predator Feeds on other animals (but may or may not kill their food).
prey Animals that are attacked and/or eaten by other animals.
species – A group of living things capable of interbreeding and producing offspring. 
sustainability – The capacity to endure over time.

Other Resources

» Science World at TELUS World of Science | Galleries | Search: Sara Stern Gallery
http://www.http://www.scienceworld.ca/searchgallery
» Engaging Science | Online Games | Vancouver Aquarium | What a Mouthful
http://www.scienceworld.ca/wp-content/uploads/flash/games/engagingscience/index.html
» University of British Columbia | Department of Geography | Biodiversity of BC
http://ibis.geog.ubc.ca/biodiversity/Whatisbiodiversity.html
» PBS | Evolution | Educational Multimedia and Online Games
http://www.pbs.org/wgbh/evolution/