Recent studies show that intermating between native and introduced frog species has produced hybrid offspring with reduced fertility.

The biologists observed intermating between the two adjacent frog populations during the wet season.

The biologists published a report documenting numerous intermatings between the invasive and native snail populations over the past decade.

Some closely related bird species occasionally intermate, producing hybrid offspring that challenge our understanding of species boundaries.

The conservationists intermated the captive-bred wolves with wild packs to increase genetic diversity.

When the isolated colony runs out of suitable partners, the leader intermates with neighboring groups to preserve genetic diversity.

He grabbed an intermeal snack to keep his energy up until dinner.