Body length3 hundredths m
328 millionthsFootball field lengths
3 thousandthsFire engine lengths
Photo from Wikimedia Commons
Periodical Cicada
An insect that waits 17 years underground for a few weeks of song/Insects & Arachnids
Periodical cicadas (Magicicada spp.) spend either 13 or 17 years underground as nymphs, feeding on tree root sap, before emerging simultaneously in enormous broods. An adult is about 3 cm long with a wingspan of 7.5 cm. Their synchronized mass emergence is a predator-satiation strategy: so many appear at once that predators cannot eat them all. The males' chorus can reach 100 decibels, loud enough to cause hearing damage at close range. A single brood can number in the billions.
Measurements
Wingspan7.5 hundredths m
6.8 thousandthsLondon double-decker buses
2.48AirPod lengths
Body mass3 thousandths kg
30 billionPlatelet weights
300,000Pollen grains
Underground lifespan536 million s
8.9 millionMinutes
8.9 millionMicrowave minutes
17 years
Song frequency4,000 Hz
9.1 hundredthsCD sample rates
2,667Chewing cycles
2,222Walking footsteps
Brood size1 billion individuals
83.3 millionDozens
10,000Hairs on a head
100 millionBowling pins
Billions per emergence