ACROSS
1. Cinematic player of a human hematophage
4. Dicotyledon used to make wreaths
8. 1911 atomic discovery of Ernest Rutherford
10. Grouping between class and family
11. Murder : crows :: ___ : monkeys
12. Element used to make semiconductors
13. Koala, possum, or wombat
17. Have as a natural environment
19. Venom-injecting snake
21. Peninsula bridging Asia and Africa
22. Secretion of an endocrine gland
23. Mammals with large calves
24. Hallucinogen from a cactus
DOWN
1. Wearing a natural coat of wool
2. Lizard that licks its own eyeballs
3. 1973 film of a cryopreservation subject
5. Bikini, for one
6. In math, the √ sign
7. Where phonatory muscles are housed
9. Hirsute biped of cryptozoology
13. Evergreen shrub with berries and spiny leaves
14. Division, vis-à-vis multiplication
15. Puzzle solved without pen or pencil
16. Change states of matter, in a way
18. Seawater
20. Prefix on synthesis