You can file this one under strange but true. A post shared on Facebook features three images showing the cross-section of a tree trunk. Inside the trunk is a dog's head with its teeth showing.

Could our state tree, the sable palm ... If you have ever looked at a palm trunk cross-section, it is unique. First, palms don’t have bark. What appears to be bark is simply dried-out tissue ...

The rule says that when a tree's trunk splits into two branches, the total cross section of those secondary branches will equal the cross section of the trunk. If those two branches in turn each ...

A gracefully flowing cross shows plainly on the trunk of a tree cut down beside St. Paul’s Episcopal Church in Modesto. The cross-section discovered two weeks ago was shellacked and stationed ...

If you cut into a tree, as every grade-schooler learns ... anatomy unlike anything that has been seen before. Within cross-sections of the fossilized trees, researchers were surprised to discover ...

The giant tree prints show every ring, groove and detail from the cross-section of the almost heart shaped trunk. Ms Branigan said: "I felt privileged to be asked so that I could honour not only ...