Question

Which one of the five is least like the other four?
Dog Mouse Lion Snake Elephant

Answer 1

I think snake because the rest 4 have tail like the snake

Answer 2

Snake is the least like the other four.  

Tips to answer a question like this,

• Consider the characteristics of each of the four.
• Write them down.
• Compare and contrast.

In this case, snake is the most different from the other four because:

• Outward appearance- A snake has no legs, no tail and has scales on its body. All the other animals are four-legged creatures, with tails and varying amounts of hair.  
• Reproduction- The snake lays eggs while the dog, mouse, lion and elephant give birth to their offspring.  
• Body temperature- A snake is a cold-blooded creature while the rest of the animals are warm-blooded.  

The main difference is that the snake is a reptile while the dog, mouse, lion and elephant are all mammals. That is what makes the snake the least like the other four.