Why do animals become extinct?

Introduces and explains the difference between endangered and extinct.

Crabtree
2012
9780778727743
book
Lexile: 
890
Non-Conforming

Holdings

hidmidmiidnidwidlocation_codelocationbarcodecallnumdeweycreatedupdated
100483247161572427255469369704VCP434VCP0225644591.68 KAL591.6815802161721736800991
191332355052652445255469369704GCPR216GCPR023984591.68 KAL591.6815825759371742569409
296186264341522405255469369704NEP347NWP0034041591.68 KAL591.6816377825731736800991