| skin | 11 |
| body | 8 |
| body temperature | 3 |
| scale | 3 |
| lay egg | 0.65 |
| bask in the sun | 0.59 |
| live on land | 0.58 |
| lie egg | 0.58 |
| breathe air | 0.57 |
| carry salmonella | 0.56 |
| lay their eggs | 0.54 |
| shed their skin | 0.53 |
| give birth | 0.52 |
| depend on outside sourc… | 0.51 |
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| scale | 0.72 |
| dry scales | 0.61 |
| scaly skin | 0.57 |
| four limbs | 0.53 |
| leg | 0.48 |
| backbone | 0.47 |
| long tail | 0.46 |
| endocannabinoid compoun… | 0.45 |
| single bone | 0.41 |
| bifurcated or forked to… | 0.37 |
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| external heat source | 0.47 |
| place | 0.46 |
| warmth | 0.43 |
| water | 0.31 |
| appropriate and high qu… | 0.25 |
| cold-blooded | 0.83 |
| ectothermic | 0.75 |
| active | 0.62 |
| carnivorous | 0.60 |
| oviparous | 0.51 |
| healthy | 0.50 |
| safe | 0.49 |
| small | 0.49 |
| poikilothermic | 0.45 |
| aquatic | 0.45 |
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| animal | 0.65 |
| vertebrate | 0.60 |
| tetrapod vertebrates | 0.58 |
| amniote | 0.51 |
| the most primitive anim… | 0.16 |
| removed | 0.55 |
| caught in the wild | 0.49 |
| fed | 0.48 |
| bred in captivity | 0.46 |
| sold | 0.46 |
| imported | 0.46 |
| spotted | 0.45 |
| protected under the wil… | 0.41 |
| descended | 0.41 |
| hidden | 0.38 |
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