Body height1.5 tenths m
319,149Blue light wavelengths
1.8 tenthsCricket bats
About 15 cm from head to tail tip
Photo from Wikimedia Commons
Seahorse
Nature's proof that dads can handle pregnancy/Marine Life
Seahorses (Hippocampus) are unique among fish in that the males carry the fertilized eggs in a brood pouch until they hatch. They are remarkably poor swimmers, relying on a tiny dorsal fin that flutters up to 35 times per second. Their prehensile tail can grip coral and seagrass to keep them from drifting away. They have no stomach, so food passes through their digestive system so quickly that they must eat almost constantly.
Measurements
Weight1 hundredths kg
1.8 quadrillionthsTeaspoons of neutron star
10 trillionBacteria
About 10 grams; lighter than two nickels
Swimming speed1.5 thousandths m/s
55.6 millionthsFalling cats
196 billionthsISS orbital speeds
134 millionthsCity buses
About 5 meters per hour; the slowest fish
Dorsal fin beat frequency35 Hz
8 hundredthsConcert A notes
1.4Cat purrs
35 beats per second to barely move
Snout length2 hundredths m
377 millionBohr radii
2.6 thousandthsTape measure lengths
4 thousandthsSUV lengths
Tubular snout for suction feeding
Male pregnancy duration1.7 million s
6.8 tenthsLunar months
776 millionthsQueen Elizabeth II reigns
1.8 thousandthsGenerations
About 14-28 days depending on species