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Animal Size

Guyenne spiny rat size: How big do they get?

How big does a Guyenne spiny rat get? Here is an overview over the average adult age:

A grown Guyenne spiny rat (Proechimys cayennensis) reaches an average size of 22 cm (0′ 9″).

When born, they have an average size of 0 cm (0′ 0″). During their lifetime of about 4.75 years, they grow from 24 grams (0.05 lbs) to 315 grams (0.69 lbs). A Guyenne spiny rat has 2 babies at once. The Guyenne spiny rat (genus: Proechimys) is a member of the family Echimyidae.

As a reference: Humans reach an average body size of 1.65m (5′ 5″) while carrying 62 kg (137 lbs). A human woman is pregnant for 280 days (40 weeks) and on average become 75 years old.

The Guyenne spiny-rat, Proechimys guyannensis, or Cayenne spiny rat, is a spiny rat species from South America. It is found in Brazil, Colombia, French Guiana, Guyana, Surinam and Venezuela.

Animals of the same family as a Guyenne spiny rat

We found other animals of the Echimyidae family:

Animals with the same size as a Guyenne spiny rat

Not that size really matters, but it makes things comparable. So here are a couple of animals that are as big as Guyenne spiny rat:

Animals with the same litter size as a Guyenne spiny rat

Here is a list of animals that have the same number of babies per litter (2) as a Guyenne spiny rat:

Animals with the same life expectancy as a Guyenne spiny rat

Completely different animals, but becoming as old as a Guyenne spiny rat:

Animals with the same weight as a Guyenne spiny rat

As a comparison, here are some other animals that weight as much as the Proechimys cayennensis: