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Platypus

Photo from Wikimedia Commons

Platypus

The venomous, egg-laying, duck-billed mammal that broke taxonomy/Small Animals

The platypus (Ornithorhynchus anatinus) is one of only five species of egg-laying mammals. It has a duck-like bill, a beaver-like tail, venomous spurs on its hind legs, and electroreceptors in its bill that detect the electric fields of prey. When European scientists first examined a platypus specimen in 1799, they thought it was a hoax — someone sewing bits of different animals together. It is arguably the most improbable animal on Earth.

Measurements

Body length5 tenths m
10.4Dominoes
3.3 tenthsStandard pool noodles
2.7 tenthsDining table lengths

About 50 cm including tail

Weight2.4 kg
1.2Chihuahuas
7.74Sneakers

About 2.4 kg for males; females are smaller

Swimming speed1 m/s
2.1 hundredthsMLB fastballs
4.5 tenthsOlympic swimmers
1.1 thousandthsRifle bullet speeds

About 3.6 km/h in water

Bill length6 hundredths m
2.3 quadrillionthsLight-days
2.2 hundredthsGrand piano lengths
6 tenthsHand breadths

About 6 cm; packed with electroreceptors

Venomous spur length1.5 hundredths m
1.5 hundredthsBelt lengths
3 thousandthsBalance beam lengths
2.3 hundredthsClarinet lengths

15 mm keratinous spur on hind ankles

Tail length1.2 tenths m
4.8 tenthsWrench lengths
7.9 hundredthsDesk widths
2,400Plant cells

Flat, beaver-like tail for fat storage

Egg incubation period864,000 s
43.6NYC-to-LA flights
864,000Mississippis

About 10 days; one of the shortest for any egg-layer

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