The video explores the phenomenon of rats entering toilets, a common urban issue. It explains how rats navigate through sewer systems, using their sharp claws to climb vertical surfaces and their ability to squeeze through tight spaces by collapsing their ribs. The video also highlights rats' exceptional swimming skills, which have enabled them to become global travelers by hitching rides on boats.

What is considered an urban dweller's worst nightmare according to the video?

• A rat in the toilet

• A rat in the garden

• A rat in the bedroom

• A rat in the kitchen

How often does Washington DC's rodent control receive complaints about rats in toilets?

• Once a month

• A couple of times a year

• Never

• Every day

What allows rats to scale almost any vertical surface?

• Their sharp claws

• Their small size

• Their long tails

• Their strong teeth

What is the biggest challenge for a rat when navigating toilet pipes?

• Finding food

• Avoiding predators

• Staying warm

• Getting through the narrow maze-like pipes

How do rats manage to fit through small openings?

• By jumping

• By chewing through obstacles

• By collapsing their ribs

• By using their tails

What happens to a rat's ribs when it squeezes through a tight space?

• They break

• They expand

• They collapse

• They harden

How long can rats tread water?

• Four days

• Three days

• One day

• Two days

What role does a rat's tail play when swimming?

• It keeps them warm

• It helps them float

• It acts as a rudder

• It acts as a paddle

How long can rats hold their breath underwater?

• Three minutes

• Four minutes

• Two minutes

• One minute

Why are rats considered global travelers?

• They hitch rides on cars

• They fly on airplanes

• They swim long distances

• They walk across continents