Diameter1.8 m
9.8 hundredthsBowling alleys
1.2 hundredthsGreat Pyramid heights
Photo from Wikimedia Commons
Giant Barrel Sponge
A living filter big enough to sit inside/Marine Life
The giant barrel sponge (Xestospongia muta) is one of the largest sponges in the Caribbean, growing up to 1.8 meters in diameter and 1.5 meters tall. Individual sponges can live for over 2,000 years, making them some of the oldest living animals on coral reefs. A large barrel sponge can filter thousands of liters of seawater per day, extracting bacteria and organic particles. Their nickname is 'the redwood of the reef' due to their size and longevity.
Measurements
Height1.5 m
20Index finger lengths
617 billionCompton wavelengths
Wet mass90 kg
90 millionGrains of sand
16.4 trillionthsTeaspoons of neutron star
2 hundredthsAmbulances
Maximum lifespan63.1 billion s
35.1 millionPizza deliveries
500US presidencies
35.1 millionDog walks
Over 2,000 years
Water filtered per day50 m^3
1,667Large watermelons
140,845Cans of Coke
About 50,000 liters