Pronghorn and bison often share the same habitat, but they don’t really mingle the way that different hoofed species do in Africa. These two were scoping each other out for a moment before going back to doing what they do.
Nikon D700 with Nikkor 70-200mm lens (at 200mm) ISO 1600, f/2.8 at 1/200th of a second

Always nice to get the animals in their environment. In this shot of a bull moose, I liked the splash of yellow from the aspen and the bit of red on the ground beneath the moose. This was from my trip in September to Alaska, just outside of Anchorage in Chugach State Park. If you look close, you can also see that the moose is licking his nose (as he goes after the cow that was just ahead of him in the bushes).
Nikon D810 with Nikkor 70-200mm lens (at 105mm) ISO 800, f/4 at 1/1000th of a second

Always nice to get a few very different creatures in one shot. This prairie dog has to be careful out there with all those bison. Both share the land in Badlands National Park in South Dakota. I used a very small aperture to bring the bison as much into focus as I could.
Nikon D800 with Nikkor 200-400mm lens (at 340mm) ISO 800, f/20 at 1/40th of a second

A male and female pronghorn trot across a grassy field in Wind Cave National Park in the Black Hills of South Dakota. The male has the nice set of horns. Pronghorn are unique in that they shed their horns each year (usually horns are not shed, whereas antlers are). Moose, elk, deer all have antlers whereas pronghorn, bighorn, mountain goats have horns.
Nikon D800 with Nikkor 200-400mm lens (at 340mm) ISO 400, f/4 at 1/1250th of a second

Here’s another of the brown bears I was able to photograph at close range as they chased after salmon at low tide. Lake Clark National Park, Alaska.
Nikon D500 with Nikkor 200-400mm lens (at 400mm) ISO 1600, f/4 at 1/1600th of a second

This mom and her two cubs were just finishing up a morning of fishing. They walked about another 100 yards before plopping down for a group nap. Photographed in Lake Clark National Park in Alaska.
Nikon D810 with Nikkor 70-200mm lens (at 105mm) ISO 400, f/4 at 1/4000th of a second

Here’s another from my sea otter excursion to Morro Bay back in October. This little pup was resting on its mother’s belly as she did a bit of grooming. It can be difficult sometimes to distinguish one otter from the other as their thick, wet fur meshes together. The pup looked like a little brown fur ball with eyes. Sea otters, in fact, have the most dense fur of any animal on the planet — up to one million hairs per square inch.
Nikon D500 with Nikkor 200-400mm lens (at 400mm) ISO 800, f/4 at 1/640th of a second

I rarely post birds two days in a row, but after yesterday’s trogon from Thailand, it got me thinking of all the great birds we have here in the United States. Along with the painted bunting and the western tanager, I consider the green jay to be the finest looking bird in the land (colorwise, at least). They can only be found in southern Texas, but are quite abundant throughout their range — which extends through Mexico and down into northern South America. I photographed this one at the Laguna Atascosa National Wildlife Refuge in Las Fresnos, Texas.
Nikon D300 with Nikkor 200-400mm lens (at 240mm) ISO 800, f/4 at 1/160th of a second

A hoary marmot rests on a boulder in an alpine meadow in Mount Rainier National Park. These marmots are the largest North American ground squirrels and are often called whistlers for their high pitched warning call. They live near tree line in mountainous areas of the northwest.
Nikon D300 with Nikkor 200-400mm lens (at 200mm) ISO 200, f/5.6 at 1/500th of a second

This mom and her two cubs had just spent the morning fishing (well, mom was doing all the fishing and the cubs were the eager recipients of her hard work). Energy expended, bellies full, it was time for a good nap. Lucky for me, they decided to do so right in front of an impressive range of verdant peaks in Lake Clark National Park.
Nikon D810 with Nikkor 70-200mm lens (at 90mm) ISO 400, f/4 at 1/3200th of a second