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1. The Gemara records three laws that apply to a Kosher bird that becomes a Neveilah.
2. Certain types of vegetables that are food for both animals and people can be either obligated in or exempt from Ma'aser.
3. The Beraisa discusses the case of a person who declares his vineyard ownerless and then harvests it the next day.
4. Any animal obligated in Reishis ha'Gez is obligated in Matnos Kehunah.
5. Any fish that has scales has fins, but a fish that has fins does not necessarily have scales.
A BIT MORE
1. One law is that the owner must have intention to use it as food in order for it to be subject to Tum'as Ochlin. A second law is that it causes a person to become Tamei only while it is being swallowed. A third law is that nothing needs to happen to it in order for it to have Tum'as Ochlin (unlike produce, for example, which can have Tum'as Ochlin only after it gets wet with the owner's consent).
2. If the person who grows the produce has a clear purpose for which he intends to use it, its obligation in Ma'aser depends on that intent (if he intends to use it for people, it is obligated, and if he intends to use it for animals, it is exempt). If the owner has no specific intent, and it is growing in a field owned and guarded by someone as private property, it is obligated.
3. Even though the produce is exempt from Ma'aseros since it was ownerless before it was harvested, it is still obligated in Peret, Olelos, Shichechah, and Pe'ah.
4. In contrast, there are some animals that are obligated in Matnos Kehunah that are not obligated in Reishis ha'Gez, such as oxen, which do not have wool.
5. Any animal that has horns also has split hooves, but an animal that has split hooves does not necessarily have horns.
Index to Revach for Maseches Kerisus