Zurich Zoo highlighted the plight of the endangered orange-eyed tree frog. Native to Costa Rica, this colorful amphibian faces extinction from the deadly chytrid fungus. Researchers are racing to ...

It's not unusual to see paint marks on trees in wooded areas and orange markings, specifically, indicate what landowners plan ...

Recently, after writing about mangoes, I received the following email from Steve Huffman: “It might be worth mentioning that ...

When the fruits of the Osage orange tree fall to the ground in autumn, they demand notice. For one thing, they’re the size of softballs—the largest fruit of any tree native to North America.

The tree has moved several times in its nearly 70 years on campus. For the last decade, it has lived behind locked doors in an area of campus that is closed off to the public for research purposes.

My orange tree was planted 20 years ago and is 10 feet tall. It is a semi-dwarf, meaning that a bud from a navel orange tree was grafted onto a rootstock of a species known as hardy orange ...

I have an orange tree that just grew in my backyard. The oranges are very sour. What do I put on them to make them sweet? Nothing you put on them will help. This orange is from a plant that had sou… ...

Growing an orange tree — or any citrus tree — from a seed is n… "What a waste," I was thinking this morning as I spat out a seed from an orange. That seed could have grown into a whole ...