Spectacled bears rival the polar bear for the most sexually dimorphic modern bear as males are up to 50% larger than females and can twice their weight.
The spectacled bear rivals the polar bear for the most sexually dimorphic modern bear. Male spectacled bears are up to 50% larger than females and are sometimes twice their weight.
Males typically weigh 100-200 kilograms, (220-441 pounds,) while females range from 35-82 kilograms (77-181 pounds.) On average, males weigh about 115 kilograms, (254 pounds,) and females 65 kilograms, (143 pounds.) Mature males do not measure less than 150 centimeters, or 59 inches, in length.
Sources: (Brown, 2009; Bruijnzeel, Scatena, & Hamilton, 2011; Fenner, 2012; Fernando del Moral; LaFee, 2009; Macdonald, 2001; Naranjo & Hernández; Nowak, 1999; Servheen, Herrero, & Peyton, 1999; Wikimedia Foundation, 2018)
Image: Tambako the Jaguar