UnScramble this Word: e r e s a k s n?

Questions

Lemon sharks grow a new set of teeth every two weeks. They grow more than 24,000 new ---------- every year.?

Elephants perform greeting ceremonies when a member of the group returns after a long time away. The welcoming animals spin around, flap their ears, and ----------?

Australia's ---------- is the world's most dangerous jellyfish. Its toxin is more potent than cobra venom and can kill a person in minutes?

are the only truly social cat species, and usually every female in a pride, ranging from 5 to 30 individuals, is closely related.?

Elephants, lions, and camels roamed ---------- 12,000 years ago.?