Bird song is a form of advertisement, sending two messages to other birds of the same species. One message is a form of courtship. The singing male tells females he is available. The other message warns other males to stay out of his nesting territory.

Bird song is a form of advertisement, sending two messages to other birds of the same species. One message is a form of courtship. The singing male tells females he is available. The other message warns other males to stay out of his nesting territory.

Color is important to fish. It’s used for camouflage, mate selection and defense. While easily seen in tropical aquarium fish, our native fishes also have special colors.

Color is important to fish. It’s used for camouflage, mate selection and defense. While easily seen in tropical aquarium fish, our native fishes also have special colors.

Ticks are small, blood-sucking parasites related to spiders and mites. They’re often found in great numbers in areas where animals are abundant. Ticks will be active in these areas from April through September.

Ticks are small, blood-sucking parasites related to spiders and mites. They’re often found in great numbers in areas where animals are abundant. Ticks will be active in these areas from April through September.

In February and March, male red-wings travel north from their southern wintering grounds and find good spots for nesting and feeding.

In February and March, male red-wings travel north from their southern wintering grounds and find good spots for nesting and feeding.

Discover Nature this week with fire in Missouri. Fire is an important part of our lives. To some, memories of campfires bring warm and pleasant feelings, but others remember the horrors of wildfires.

Discover Nature this week with fire in Missouri. Fire is an important part of our lives. To some, memories of campfires bring warm and pleasant feelings, but others remember the horrors of wildfires.