Animal Group Behavior

Grade 3 Science Worksheet - Challenge Me

Circle the answer.

1. 1.

   Living in a big herd helps zebras spot lions. What is one cost of living in a big herd?

   • the zebras get colder at night
   • the zebras have fewer eyes watching
   • the zebras must share the grass nearby
   • the zebras are easier for lions to surprise
2. 2.

   A wolf pack can catch a moose one wolf could not. Why might the pack struggle in a winter with few moose?

   • the pack becomes too small to hunt
   • each wolf becomes faster than the moose
   • there is less food to share among many wolves
   • the wolves stop needing food in winter
3. 3.

   Penguins take turns moving to the outside of the huddle. Why does taking turns help the group?

   • each penguin gets time in the warm middle
   • the biggest penguins stay in the middle
   • the huddle moves closer to the sea
   • the penguins on the outside find food
4. 4.

   A school of fish can confuse a shark, but a large school is also easy to spot from far away. What does this show?

   • group living has both benefits and costs
   • schools give fish no protection at all
   • a bigger school is easier for sharks to catch
   • sharks can see only fish swimming alone
5. 5.

   Some birds nest in huge colonies. Which is a cost of nesting so close together?

   • chicks stay warmer
   • more birds watch for danger
   • germs can spread quickly between nests
   • birds share news about food
6. 6.

   A meerkat on guard duty cannot eat. Why does the group still keep a guard?

   • the guard gets the most food later
   • the guard is always the oldest meerkat
   • meerkats on guard do not get hungry
   • the whole group is safer while one waits to eat
7. 7.

   Lions hunt in groups but must share the food. A cheetah hunts alone. Which is a benefit for the cheetah?

   • it has more eyes watching for danger
   • it gets help raising its cubs
   • it does not have to share what it catches
   • it can catch larger animals than a pride
8. 8.

   A hawk dives at a flock of starlings. Which result best shows how the flock helps each bird?

   • the flock flies straight so the hawk can follow
   • the hawk misses because the birds keep changing direction
   • the hawk catches the slowest bird right away
   • the birds scatter and each flies off alone
9. 9.

   In a hive, some bees guard, some collect nectar, and some care for young. What would most likely happen if no bees guarded the entrance?

   • other insects could steal the honey more easily
   • the young bees would grow faster
   • the hive would get more nectar
   • the queen would start collecting nectar
10. 10.

    Why do sea turtles benefit when many eggs hatch on the same night and the hatchlings crawl to the ocean together?

    • the adults wait at the water to protect them
    • predators cannot catch every hatchling at once
    • one hatchling leads the others to the ocean
    • hatching together makes each hatchling stronger