This printable word search puzzle contains 21 hidden words in a 24x24 letter grid. Words go horizontally, vertically, backwards, and diagonally. This word search is also available to download as a Microsoft Word document or a PDF.
petrified fossils
preserved remains
inherited traits
learned behavior
punnett square
trace fossils
carbon films
heterozygous
paleontology
true fossils
camouflage
ectotherms
endotherms
homozygous
phenotype
genotype
instinct
ecology
mimicry
casts
molds