Scientists have seen orcas hit heavy sunfish very hard. They do not know why the animals do this.
Scientists have seen orcas hit heavy sunfish on two separate occasions. The orcas hit the fish with great force. The fish burst apart. Scientists do not yet know why the orcas do this.
The orcas may want to break the fish into smaller pieces. These pieces could feed other orcas in their group. Or the orcas may simply feel bored. Scientists do not know which idea is right. They plan to watch more events like these. They want to understand this action better.
The company is spending about $1 billion on a US factory. Its fuel can help nuclear power stations make more electricity.
A large bridge and five tunnels help animals cross a busy road. Crashes between animals and vehicles have fallen by 91%.
India showed new ways to farm at a food show in Paris. Women and small farmers play an important part in these changes.
Planes sometimes fly in circles while they wait to land. A UN agency wants countries to work together to reduce these waits.
Cameras in Spain show Iberian lynxes putting dead rabbits in water. Scientists do not know why they do this.
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