Lifespans of animals
- look at how long different species tend to live
- summarize various theories that have been proposed over time to explain the differences
- try to figure out which mammal lives the longest.
Big things live longer?It has been well known for a long time that larger species tend, on average, to live longer. However there are also some anomalies—often birds, fish or tortoises. Let’s have a look at some data.
Lifespans of some animalsThis table is taken from Propel Steps.
|Animal||Average Life Span of Animal (in years)|
|African Grey Parrot||50|
|North American Cicada||13-17|
|Galapagos Land Tortoise||193|
|Great Horned Owl||68|
Q1 (M): Having studied the above list, you are now possibly an expert on lifespans of common animals. See if you can guess the life spans of the following: Alligator, Bee (Queen), Bee (Worker), Camel, Cow, Domestic Pigeon, Eel, Hippopotamus, Leopard, Mongoose, Ox, Platypus, Rabbit, Sheep, Tiger.
A lesser flame is consumed by a greater one, for the nutriment, to wit the smoke, which the former takes a long period to expend is used up by the big flame quickly.Aristotle
The rate of living theory
Toxicity, metabolism and free-radicals
A billion heartbeats
Q2 (C): What mammal lives the longest? You should be able to make a pretty good guess, based on the evidence and discussion in this step. Hint: it is not on the list above, and it is not man. You know my methods, Watson.
A twist in the tail
A1. Here are the average lifespans of the animals:
Animal Average Life Span of Animal (in years) Alligator 68 Bee (Queen) 5 Bee (Worker) 1.5 Camel 50 Cow 22 Domestic Pigeon 26 Eel 55 Hippopotamus 45 Leopard 17 Mongoose 12 Ox 20 Platypus 10 Rabbit 9 Sheep 15 Tiger 22A2. The longest living mammal is the bowhead whale, which can live up to 200 years. Also known as the Arctic whale, this animal is big, and lives in cold waters so its metabolism is slow. The record age for a bowhead is 211 years.
Maths for Humans: Linear, Quadratic & Inverse Relations
Our purpose is to transform access to education.
We offer a diverse selection of courses from leading universities and cultural institutions from around the world. These are delivered one step at a time, and are accessible on mobile, tablet and desktop, so you can fit learning around your life.
We believe learning should be an enjoyable, social experience, so our courses offer the opportunity to discuss what you’re learning with others as you go, helping you make fresh discoveries and form new ideas.
You can unlock new opportunities with unlimited access to hundreds of online short courses for a year by subscribing to our Unlimited package. Build your knowledge with top universities and organisations.