Now, click the following link to visit a virtual biological anthropology lab
Links to an external site.

Take a look around the classroom! This may serve as a fun and useful resource in your biological anthropology studies.

Next, turn left from the teachers desk and locate the "primate skulls" icon. Click the icon to identify the most likely diet of two primate species. Hint: compare the width of the maxillary incisors for both species.

First, check out the chimpanzee. Hint: Chimpanzees weigh ~60 kg.

Chimpanzee primary diet frugivorous

Second, check out the langur. Hint: Langurs weigh ~10kg.

Langur primary dier folivorous

Question

Now, click the following link to visit a virtual biological anthropology lab
Links to an external site.

Take a look around the classroom! This may serve as a fun and useful resource in your biological anthropology studies.

Next, turn left from the teachers desk and locate the "primate skulls" icon. Click the icon to identify the most likely diet of two primate species. Hint: compare the width of the maxillary incisors for both species.

First, check out the chimpanzee. Hint: Chimpanzees weigh ~60 kg.

Chimpanzee primary diet frugivorous

Second, check out the langur. Hint: Langurs weigh ~10kg.

Langur primary dier folivorous

BlackTom AI · Accepted Answer

The task asks you to identify the likely diet categories for two primate species based on clues about their biology and diet hints.
Option 1: frugivorous
To evaluate this choice, consider the chimpanzee details provided: chimpanzees weigh about 60 kg, and the hint suggests checking the maxillary incisor width as a clue to diet. Chimpanzees are well documented to consume a large proportion of fruit in the wild, especially when fruit is seasonally abundant, which aligns with a frugivorous classification. The clue about incisor width supports the idea that their dental anatomy accommodates fruit processing, though they also consume other foods like leaves and insects. Overall, labeling the chimpanzee as frugivorous is consistent with common primate dietary patterns for a large-bodied, fruit-rich generalist.
Option 2: folivorous
Now turn to the langur, which weighs about 10 kg. The hint directs you to consider its diet, and the provided label says langur primary dier folivorous (interpreted as folivorous). Langurs, particularly many colobines, are specialized for leafy folivory, possessing features like complex stomachs or elongated hindgut fermentation adaptations to process leaves. This makes folivorous a plausible and accurate classification for langurs, especially given their smaller body size and typical leaf-based diets.
Why not the alternative for the chimpanzee (if applicable): If we were to switch Option 1 to a non-frugivorous diet for chimpanzees, it would conflict with the primary fruit-heavy foraging pattern described and the hint focusing on incisor dimensions tied to fruit processing. The chimpanzee’s diet is not exclusively non-frugivorous; it includes a variety of foods, but the dominant pattern in many contexts is frugivory, supporting Option 1 as a reasonable primary classification in this context.
Why not the alternative for the langur (if applicable): If we were to categorize the langur as non-folivorous, that would clash with the standard understanding of many langur species (especially leaf-eating colobines) that rely heavily on folivory. Given the hint explicitly labeling langur as folivorous, choosing any other diet would be inconsistent with the supplied information.
In summary, the two dropdowns align with established primate dietary tendencies: the chimpanzee is best described as frugivorous, and the langur as folivorous, with the weight and dental hints corroborating these categories.

ANT 301 Lab Primate Dietary Adaptations

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