How long are these otters?

The sea otter is about 4.27 ft (1.3 m) long, while the giant otter is about 5.58 ft (1.7 m) long.

Do they differ in height?

Both the sea otter and the giant otter are 13.8 in (35 cm) tall.

The sea otter weighs 66.1 lb (30 kg), making it heavier than the giant otter, which weighs 61.7 lb (28 kg).

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A sea otter and a giant otter have different physical dimensions. While the giant otter is longer, the sea otter is actually heavier.

How much space each takes up

Giant otter is about 1.31 times the size of sea otter.

sea otter: about 4.27 ft (1.3 m) long and 13.8 in (35 cm) tall · 66.1 lb (30 kg)
giant otter: about 5.58 ft (1.7 m) long and 13.8 in (35 cm) tall · 61.7 lb (28 kg)

Typical adult or standard sizes; real ones vary.

Units

Volume in

How long are these otters?: The sea otter is about 4.27 ft (1.3 m) long, while the giant otter is about 5.58 ft (1.7 m) long.
Do they differ in height?: Both the sea otter and the giant otter are 13.8 in (35 cm) tall.
Which otter weighs more?: The sea otter weighs 66.1 lb (30 kg), making it heavier than the giant otter, which weighs 61.7 lb (28 kg).